#thylacine sighting

[ornithologyorthodoxy]

8/23/23

[gemwolfz]

@mechanicalhoundz

Something a bit less heavy for today, haha. This is a color theory exercise that I did a while back. Each of the six sides of the cube depicts an extinct species, using a different formal color scheme. It was a fun challenge to figure out ways to make the scenes ‘interlock’ along the edges! Featured are:

Dodo (tetradic)

Passenger pigeon (temperature)

Quagga (triadic)

Thylacine (analogous)

Pink-headed duck (split-complimentary)

Bluebuck (complimentary)

[chikkenhawke]

i’ve been on a thylacine kick lately prints etc available on me redbubble

[nonuggetshere]

Okay yeah I said I wasn't gonna give anyone my NSFW twitter and you'd have to look for it but actually I realised it doesn't really matter so

If you want my NSFW twitter, you can DM me or send an ask

[amnhnyc]

On this day in 1936, the last known thylacine (Thylacinus cynocephalus) died at the Hobart Zoo in Tasmania. The animal’s passing marked the extinction of its species. Also known as the “Tasmanian wolf,” the thylacine was Australia’s largest marsupial predator. It sported a dog-like form, with distinctive stripes, and a jaw that could open up to 80 degrees—one of the largest gapes of any mammal.

The thylacine fed primarily on small mammals and birds. Nocturnal and shy, it was seldom seen by humans. However, beginning in the 19th century, settlers believed the animals threatened their livestock and, spurred on by a bounty offered by the government, hunted them relentlessly. Attempts at protecting the species in the wild came too late: Despite numerous unconfirmed reports of sightings in recent decades, no definitive sightings have occurred since the 1930s.

[cryptid-quest]

Cryptid of the Day: Dobsengna 

Description: In 1986, a large, striped, dog-like animal was seen on Mount Giluwe, in Papua New Guinea, referred to as the Dobsegna. Many hope these are living Thylacines, hiding in the island jungles, while others think sightings are misidentified Singing Dogs. 

[manusuchus]

Tasmania , just a blink of an eye ago

September 7th, 1936. The last captive thylacine, a male nicknamed "Benjamin", died from unknown reasons at the Hobart´s Beaumaris Zoo.

Two months later, thylacines became a legally protected species.

In 1982, park ranger Hans Naarding was surveying in north-west Tasmania when he stood for several minutes with his torchlight fixed on a thylacine. It is the last credible sighting of the animal in the wild.

That same year, the IUCN declared the Thylacine, commonly known as the "Tasmanian tiger", officially extinct.

Photos, videos and sightings have been regular since then, none really worthy of consideration as late evidence of the species' late survival.

Companies of questionable morality have promised to bring the species back from extinction through cloning and genetic engineering.

But the thylacine is gone forever. That's the hard truth.

We can try to convince ourselves that somewhere, hidden and far away from humans, they are still alive. We can try to convince ourselves that our advanced technology will reverse the mistakes of the past and change the natural order.

But the thylacine is gone, and that will not change.

This sad story leaves us with an important lesson: We must put all our efforts and resources into conserving the species that remain in our world.

May the Thylacine always remain an eternal reminder of what extinction means.

[terry-the-insane]

Animal of the Day for November 24: Thylacine (Species Thylacinus cynocephalus)

More commonly known as the Tasmanian Tiger, Thylacines were the apex predators of Tasmania, with close relatives in the Thylacinus genus also having formerly inhabited Australia. Despite their dog-like appearance, Thylacines are actually marsupials, their appearance and behavior is due to convergent evolution.

Unfortunately the Thylacine was hunted to extinction, with the last known individual dying in 1936. However there have been alleged sightings of living Thylacines, and scientists are making efforts to de-extinct Thylacines.

[whysperingwoods]

Tasmanian tiger comeback??

From the article:

“It was literally a head in a bucket of ethanol in the back of a cupboard that had just been dumped there with all the skin removed, and been sitting there for about 110 years,” Prof Andrew Pask, the head of the thylacine integrated genetic restoration research (with the acronym Tigrr) lab at the University of Melbourne, says.

[...]

A year on, he says it has advanced the work of the team of Australian and US scientists who are trying to resurrect the species more than expected at this stage. “We are further along than I thought we would be, and we have completed a lot of things that we thought would be very challenging and others said would be impossible,” he says.

The plan to ‘de-extinct’ the thylacine The project to bring back the thylacine is being driven by Colossal, a Texas-based biotechnology “ de-extinction and species preservation” company that is also aiming to recreate the woolly mammoth and the dodo using genetic engineering techniques.

[...]

The thylacine was Australia’s only marsupial apex predator. It once lived across the continent, but was restricted to Tasmania about 3,000 years ago. Dog-like in appearance and with stripes across its back, it was extensively hunted after European colonisation. The last known survivor died in captivity in 1936 and it was officially declared extinct in the 1980s.

Colossal says researchers have made several breakthroughs in its work on the species, putting the company much closer to its goal of returning it to the wild. They include what they say is the highest quality ancient genome ever produced, with just 45 gaps in a genetic blueprint that contains about 3bn pieces of information.

Lamm says it is an “incredible scientific leap” putting the program “on track to de-extinct the thylacine”, while other recent breakthroughs will be useful in protecting critically endangered species. “We are pushing as fast as possible to create the science necessary to make extinction a thing of the past,” he says.

[dark-and-endless-sky]

The Thylacine, or Tasmanian Tiger.

Extinct, or are the recent sightings true?

[darcylewisbingohq]

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[despazito]

hey! I was wondering if you ever watch clints reptiles - he just posted a video about marcupeal phylogeny and specifically mentioned thylacines, and talked about how theres been sightings in new guinea? i was just wondering about your opinion, since you just posted a new thylacine drawing and i know youre very interested in them :D

idk, the fact i haven't heard all that much buzz about this theory from the zoologists i follow on twitter makes me doubtful by default.

i'll be honest i'm pretty skeptical of this new guinea claim because of dingoes and new guinea singing dogs.

the popularly accepted theory for the mainland extinction of the thylacine and likely tasmanian devil was competing pressure from dingoes.

clint mentions all of this, but he leaves out the fact that dingoes arrived on the australian continent from the north and studies indicate that dingoes may be descendants of more basal new guinea singing dogs. that would likely mean imo that the new guinea thylacine population, if anything, would be the first to suffer the consequences of canine encroachment.

only on the island of tasmania where absolutely no dingoes were ever present sheltered a 100% verifiable thylacine population by the time of european colonization. to my knowledge, the most recent solid physical evidence of thylacines in new guinea is still several thousand years old. so to me it seems that dingo/wild dog distribution and thylacine distribution mixed as well as oil and water. If there's thylacines in new guinea, it would have to be some enclave free of dogs.

i know the topography of new guinea can give refuge to very cryptic animals, and as clint said the relatively low human population and no european persecution is a plus. i won't disocount local indigenous anecdotes because they've been proven right with other species once thought extinct, but like where are skins or bones or footprints?

also i feel like clint really really oversimplified the cloning process thylacines would require. he makes it seem like it would be simple because we have their whole genome sequenced and have specimens under 100 years old to work with. the thing is, cloning a mammoth is simpler than cloning a thylacine even though they went extinct millenia ago, because mammoths still have a close living relative.

a cursory look at google tells me wooly mammoths and extant asian elephants last shared an ancestor as recently as 6 million years ago, they both belong to the family elephantidae. thylacines however were the last living member of their own family, thylacinidae, which diverged somewhere around 25mya from the other dasyuromorphs. scientists don't really have a close living relative to work with. clint says the complete genome means we wouldn't have to "stick frog DNA in there" to complete it, but the thing is with cloning you have to start with a frog/living DNA sample to tweak it into a thylacine!! until we can 3D print an organism out of thin air with proteins and acids, there has to be a template sample of living cells whose nuclei we can tamper with. and the less related they are, the more DNA has to be overhauled

if you wanna learn exactly how much of a logistical nightmare it's gonna be to clone a thylacine, this lecture explains it way better:

the takeaway analogy is that cloning a thylacine is the CRISPR equivalent of doing a puzzle of a clear blue sky, not having the box to look at for any reference, and about half the pieces are doubles of other pieces (because most DNA is junk code that does nothing). it's like next to impossible and i still have more faith in de-extinction than a rediscovery.

so yeah, i guess i'm a bit of a thylacine doomer. but i do want to believe, just temper your expectations. to me a win would be a single engineered thylacine cell by the centennial of their extinction lol.

[newlabdakos]

Thylacine

(temporal range: 2 mio. years ago until 7. September 1936)

[text from the Wikipedia article, see also link above]

The thylacine (/ˈθaɪləsiːn/; binomial name Thylacinus cynocephalus), also commonly known as the Tasmanian tiger or Tasmanian wolf, is an extinct carnivorous marsupial that was native to the Australian mainland and the islands of Tasmania and New Guinea. The thylacine neared extinction throughout most of its range in mainland Australia by about 2,000 years ago, most likely because of the introduction of dingoes or due to climate change. Prior to European settlement around 5,000 remained in the wild on Tasmania. Beginning in the nineteenth century they were perceived as a threat to the livestock of farmers and bounty hunting was introduced. The last known of its species died in 1936 at Hobart Zoo in Tasmania. The thylacine is widespread in popular culture and is a cultural icon in Australia.

The thylacine was known as the Tasmanian tiger because it displayed dark transverse stripes that radiated from the top of its back, and it was known as the Tasmanian wolf because it had the general appearance of a medium-to-large-size canid. The name thylacine is derived from thýlakos meaning "pouch" and ine meaning "pertaining to", and refers to the marsupial pouch. Both sexes had a pouch. The females used theirs for rearing young and the males used theirs as a protective sheath, covering the external reproductive organs. It also had a stiff tail and could open its jaws to an unusual extent. The thylacine was an apex predator, though exactly how large its prey had been is disputed. Its closest living relatives are the other members of Dasyuromorphia including the Tasmanian devil.

The thylacine had died out on New Guinea and very few were left on the Australian mainland before European settlement of the continent. Intensive hunting on Tasmania is generally blamed for its extinction, but other contributing factors were disease, the introduction of and competition with dingoes, human encroachment into its habitat and climate change. The remains of the last known thylacine were discovered at the Tasmanian Museum and Art Gallery in 2022. Since extinction there have been numerous searches and reported sightings of live animals, none of which have been confirmed.

The thylacine has been used extensively as a symbol of Tasmania. The animal is featured on the official coat of arms of Tasmania. On 7 September, the date in 1936 on which the last known thylacine died, National Threatened Species Day is commemorated in Australia. Universities, museums and other institutions across the world research the animal. Its whole genome sequence has been mapped and there are efforts to clone and bring them back to life.

[saritapaleo]

Patreon request for @/brittoniawhite (Instagram handle) - Thylacinus cynocephalus. I’ve drawn this guy already, but here’s a new pose AND a size chart, which the previous post didn’t have.

Known by several common names: the Tasmanian Tiger, Tasmanian Wolf, or simply the Thylacine, Thylacinus cynocephalus was neither canine nor feline, but instead a large carnivorous marsupial.

Being a marsupial, it had a pouch. Though it was unique in that both females and males had pouches: the males’ were used to protect their reproductive organs. Thylacine life expectancy was estimated to be between 5 and 7 years, though some captive specimens lived to 9 years. They were shy and nocturnal carnivores, likely eating other marsupials such as kangaroos, wallabies, wombats, and possums, as well as other small animals and birds, such as the similarly extinct Tasmanian Emu. However, it is a matter of dispute whether the thylacine would have been able to take on prey items as large or larger than itself. It is unknown whether they hunted alone or in small family groups, though captive thylacines did get along with each other.

Thylacinus cynocephalus was the last of the Thylacinids, a family of Dasyuromorph marsupials. It lived from the Pleistocene to the Holocene in Australia and New Guinea, driven to extinction in the 1930s by hunting, human encroachment, disease, and feral dogs. The thylacine was already extinct on the Australian mainland and New Guinea by the time British settlers arrived, with the island of Tasmania being its last stronghold. Settlers feared the marsupial would attack them and their livestock, demonizing it as a “blood drinker”, and bounties were put in place that drove the thylacine to be overhunted. As they became rarer, there was a push to capture thylacines and keep them alive in captivity, but unfortunately it was too little, too late. Conservation and animal welfare was not at the level it is today, not much was known about their behavior in the wild, and there was only one successful birth in captivity. Studies show that with continued successful breeding, a campaign to change public perception, and protections put into place much earlier, the thylacine could have been saved. But the last captive thylacine died in 1936, and official protection was not put in place until that year, 59 days before his death. Sightings continued into the 1980s, and even today some claim to see them, but all of these sightings are unconfirmed and unlikely. As are all the other animals on this account, the thylacine is definitively extinct.

Today, carnivores such as wolves and coyotes are demonized in the same way the thylacine was, and there are some who wish to also wipe them out entirely, even having succeeded in many places. While some of the thylacine’s closest relatives, like the Numbat and Tasmanian Devil, survived the European persecution which killed off the thylacines, they are still endangered today due to introduced predators and disease. Instead of continuing to search for, or trying to resurrect the lost thylacine, perhaps it is best we channel that attention, love, and regret on the species we still have. Extinction is forever, and it is easier to save those who are still alive.

This art may be used for educational purposes, with credit, but please contact me first for permission before using my art. I would like to know where and how it is being used. If you don’t have something to add that was not already addressed in this caption, please do not repost this art. Thank you!

[a-dinosaur-a-day]

Round Three: Cryptogyps vs Heracles

Cryptogyps lacertosus

Artwork by @otussketching, written by @zygodactylus

Name Meaning: Powerful Hidden Vulture 

Time: 770,000 to 55,000 years ago (Chibanian to Tarantian stage of the Pleistocene epoch, Quaternary period) 

Location: Throughout Australia, including Kalamurina, the Wellington Caves, and the Nullarbor Plain 

Today, there are no vultures in Australia. In fact, until recently, it seemed fairly clear that no vultures had lived in Australia - but now, we know they did! Originally thought to be an eagle, Cryptogyps was on the small size for a vulture, only bigger than the living Hooded Vulture - though it was about the size of the wedge-tailed eagle. However, it was proportioned similarly to other vultures, and between that and its great range across the entirety of Australia, it is logical to conclude that it lived similarly to other vultures, feeding primarily on carrion and going great distances to find it. It did not have the right musculature to be an active hunter like eagles and hawks. As such, Cryptogyps was a vital part of its environment, reducing the spread of disease and recycling nutrients and energy back into the food web like vultures today. Cryptogyps lived alongside a wide variety of weird megafuana present in Australia during the last ice age, including marsupial lions, giant demon-ducks (mihirungs), giant hippo-sized wombats, sheep-sized and fossorial echidnas, short-faced kangaroos, giant koalas, thylacines, giant maleefowls, huge monitor lizards, large crocodilians, and giant pythons - as well as cassowaries, regular kangaroos, emus, and other large animals that remain today. It was a weird place of which Cryptogyps was a small and important part, and would have been a regular sight in the skies to the first Indigenous Australians to settle on the continent!

Heracles inexpectatus

Artwork by @otussketching, written by @zygodactylus

Name Meaning: Unexpected Herculean Parrot 

Time: 16 to 19 million years ago (Burdigalian stage of the Miocene epoch, Neogene period) 

Location: St. Bathans Fauna, Bannockburn Formation, Aotearoa  

Heracles was a truly alarmingly large parrot, related to modern day Kea, Kaka, and Kakapo, known from the fantastic avifauna of St Bathans. Standing more than two feet tall and weighing about fifteen pounds, this animal was much larger than any expected from the St Bathans fauna, which represented the initial colonization of Aotearoa (Zealandia) after it returned above sea level. Heracles is also the largest known species of parrot, ever. It was presumably flightless, though it is uncertain if it was nocturnal like its living relative the Kakapo. Its exact ecology is still uncertain, given the material known from Heracles is limited and its living relatives have very disparate ecologies, though it is possible it was omnivorous similar to the Kea and Kaka today. The St Bathans fauna lived in a freshwater lake system, in a subtropical emergent rainforest. Separated from land bridges, the fauna was dominated by birds, with early relatives of the Kiwi, New Zealand Wrens, Adzebills, and Wedge-Tailed eagles found in the fauna, as well as somewhat modern looking Moas. Smaller flamingos, large fruit pigeons, and a huge variety of geese and other waterfowl are known. In addition, frogs, tuataras, other lizards, crocodilians, turtles, and many different types of fish are known from this fascinating ecosystem. 

[extinctionstories]

Enough with these “immersive art” and “immersive cartoon” experiences. I want an immersive extinct animal experience. I want to see life-sized thylacines, and dodos running on a beach. I want to sit on the floor of a warehouse while the sights and sounds of a full flock of passenger pigeons is projected all around me.