#Common bottlenose dolphin

[inatungulates]

Common bottlenose dolphin Tursiops truncatus

Observed by setibarbara, CC BY-NC

[fyeahyoshizakimine]

[namu-the-orca]

“Faces from the Black Sea”

A series of drawings I started in 2018 and, of course, never continued. The idea was to practice my pencil work through several photo studies of Black Sea bottlenose dolphins. They have the most beautiful faces and markings, so a lovely subject for a study series like this. Alas, something or another came along and it never got further than these two drawings. Even though they’re older works I still very much like them! And I hope you will, too.

The original photograph references are here and here.

[ksksksrahrah]

[sandpaperoctopi]

saw some mammals

[namu-the-orca]

YEESSSSSS dolphin species appreciation is always welcome. I could add some more weirdos but frankly let me do a hot take here. Namely that Bottlenose dolphins do not deserve the "boring classic all grey dolphin" image. They are GORGEOUS in their own right.

Look at Kayena with her elegant face and thoughtful eyes and how the lines that run from it towards her melon turn into swirls like clouds only to emerge as lines again and that single spot that turned into a stripe.

Look at Ritiña with her dainty rostrum and how her lower eyestripe folds back on itself and wisps around the corner of her mouth and that little light line that runs to her ear.

Look at Roxette with her crazy swirls where the three colours grey of her side meet right by her belly.

Look at the sunburst markings on their shoulders, and how they shift between light and dark depending on the angle of the sun yet you can't feel them at all.

Look at Serena with the double lined markings on her throat, like curtains decorating a stage, or her mother Tela with a galaxy of spots scattered over a soft pink background.

Look at Tela.

Look at Caiyo. Look at this sparkling man and tell me he is not beautiful.

I think it's sad that most people always think of bottlenoses as the "classic dolphin" since its the one that's always used for shows, and always think of dolphins as just straight grey when in reality there's so many varieties with so many different amazing patterns

Look at the common dolphin! They have a gorgeous X pattern and even some dull yellow/gold!!

Hourglass dolphins have gorgeous white streaks

Spinner dolphins have really pretty banding as well, AND they have a really sleek cute silhouette!

The atlantic spotted dolphin!!! Theyre spotted!!!!!!

and the pantropical spotted too!!

Dusky dolphins have a gorgeous airbrush look going on like straight out of a 2000s fantasy illustration

Striped dolphins sure have stripes!! How cool!!

And these I've shown you aren't even all of them at all, there are so many of them:

There's so so so many different types of dolphins people dont know about this isnt even all of them and some are SO gorgeous and underrated because people just dont know they exist so I'm here to fix that

[wigmund]

Five years ago, Delle the bottlenose dolphin was spotted by himself in Denmark's Svendborgsund strait which is far outside the natural range for the dolphins.

Researchers dropped microphones into the strait to see how a lone dolphin was interacting with its environment. They didn't expect much but instead recorded over 10,800 noises over a period of three months. This included calls normally reserved for dolphins interacting with their pod, multiple unique personal calls when most dolphins only have one for themselves and aggressive response calls indicating an argument with other members of its pod.

Researchers think that Delle has been by himself for so long he's talking to himself.

[antiqueanimals]

Walt Disney's White Wilderness: Animals of the Arctic. By Robert Louvain and the Staff of the Walt Disney Studio. 1958.

Internet Archive

[namu-the-orca]

This is really interesting! And a good lesson in just how subtle signs of aggression/displeasure can be in species we're not familiar with (or familiar seeing as eternally happy, friendly creatures).

Dolphins are strong, wild animals, which are potentially dangerous. For me it really hit home when I got to do a free swim with some dolphins and the experienced trainer with me advised me to swim with my arms in a hoop around my head because "I'd rather have them break your arm than your neck." Not that they were mean or dangerous dolphins! But they are 200+ kg animals of mostly muscle, and what seems a small "kick" with their flukes to them could be disaster for us.

My personal aggression (precursor) experience was swimming with a mom dolphin, Tela. Her daughter was getting trained for open ocean work and she was not happy (her previous calf had had a small accident during his open ocean training and she hadn't forgotten). I got to swim with her like a guest would, just to take her mind off things. She wasn't too pleased. I mean, she was fine with me hanging by her dorsal fin, petting her, but she had one eye directly on me, and the other directly on her daughter. Sometimes she'd open her mouth ever so slightly. She didn't do anything, but it was clear this interaction was on her terms only.

There were also two males that were quite aggressive. Not out of bad character or anything, they just thought there was no better fun in the world than beating each other up. Structured work with them was awesome and they'd rock the stars for you. But as soon as you tried to have some free, fun time with them, it would very quickly devolve into "Hey can we have a fight just for fun???". They were from Cuba and word was that all dolphins from there have a spice that others don't.

Anyway, long ramble, but I find it interesting to see this other side to them. Not to paint them as the new evil creature to hate, but to see them as the full, rounded animal they always have been, and deserve to be seen as.

Let's learn cetacean aggression precursors!

Here's a fun experience I managed to captured when I was doing a sea pen check on scuba while the dominant male and female (J and Layla) pair were getting agitated. Lots of signature whistling, rapid and sharp turning and circling, syncing movements, very minor pec flaring.

Here that honking noise? That's a dolphin cuss word. They started circling very close to me after this so I slowly ascended and left their lagoon. It was hard to determine if it was towards each other or towards me but I didn't want to hang around to find out. I was very new at this point and was still building my relationship

This was a facility that had very lax protocols around scuba (no buddy, crappy gear, dive with the dolphins it's totally fine!!!) - it was very dangerous!

[thefandomdoeofficial]

More dolphin James let’s go.

[inatungulates]

Common bottlenose dolphin Tursiops truncatus

Observed by kimberlietx, CC BY-ND

[fyeahyoshizakimine]

[namu-the-orca]

Has there been a case of a hybrid between a bottlenose and an Atlantic spotted dolphin?

Perhaps! No one knows for sure. There has been no definitive proof from DNA samples of wild animals, nor has it ever been confirmed in captive animals. However, there is much reason to believe it is plausible, and one possible hybrid has been observed.

Let me take you to The Bahamas. Specifically, Great Bahama Bank and Little Bahama Bank. They're sprawling sandbanks surrounding the islands, and many Atlantic spotted dolphins as well as coastal Common bottlenose dolphins make their home there. The spotted dolphins have been studied for more than 30 years by Denise Herzing and her associates. While by far the most encounters are with single-species groups, there have been dozens of mixed species encounters as well.

Many of these are aggressively sexual in nature, with males of both species sparring and trying to enter each other. Male bottlenose dolphins often seem to dominate the smaller spotted dolphins during these encounters, though the spotted dolphins have been seen retaliating, and it is speculated they don't actually experience the harassment as very negative. Since much of the action is male-on-male or involves juvenile animals not yet sexually mature, it seems in many cases the nature of these encounters is more social than sexual. However, multiple cases of interspecific male-on-female copulation have been observed.

With so much going on, the potential for hybridism is great. And since the two species are morphologically quite similar (especially when young), a hybrid could easily fly under the radar.

In February of 2003, Herzing and her team observed a female spotted dolphin with an unusual looking calf. The calf had a shorter rostrum than is normal for spotted dolphins in the area, but it was longer and more elegant than that of a Bahamian bottlenose. Herzing assumed it could be a hybrid calf. However, since no DNA testing was done and the calf was only observed for two days, this can't be confirmed. In 1989 and 1996 there have also been observations of female spotted dolphins mothering over bottlenose dolphin calves. In one case the calf was emaciated, and the spotted dolphin swimming with it wasn't lactating, so most likely the calf died. In another case it was only a temporary association and the bottlenose calf returned to their real mother after a while.

So a lot of interesting things going on. The studies are still ongoing. To my knowledge no large scale DNA testing has been done, nor any new "suspect" animals observed. Perhaps in the future a hybrid will be confirmed! Or perhaps it turns out this is one of those mixes that just doesn't work.

I highly recommend you read the study the photo comes from: "Interspecies interactions between Atlantic spotted dolphins, Stenella frontalis and bottlenose dolphins, Tursiops truncatus, on Great Bahama Bank, Bahamas". And many of the other studies done by Denise Herzing's team can be read for free here: https://www.wilddolphinproject.org/media/scientific-publications/

[ksksksrahrah]

[dansnaturepictures]

Some magical moments from our Scotland trip over the past week

We enjoyed fine views of colourful Oystercatcher and rustic Common Sandpiper shuffled along Lochindorb’s shore. Then we were mesmerised as a slick, otherworldly and stunning bird surfaced extraordinarily close to the shore, a summer plumage Black-throated Diver. It was an honour to watch this exquisite bird and its partner swim, stick their head under the water and dive. What an honour to see these sensational birds in their breeding grounds so intimately. Not long after a scene evocative of the moors captivated us, a pure and prepossessing Red Grouse on the roadside. In a daze of a few minutes it was wonderful to focus on and admire the bird, letting its gargling call wash over us.

One of the Black-throated Divers

Fresh from picking out Puffin and Common Scoters out to sea we were fixated on another fine diver at the shore of Spey Bay, the ruby throated gem that is the Red-throated Diver, alongside another further out still in winter plumage. It was electrifying to watch this excellent and eye-catching bird. Then all of a sudden where seabirds gathered further out breaking the surface were dorsal fins of Bottlenose Dolphins. Glee filled minutes followed as we saw the dolphins feed, getting exhilarating glimpses of more of their shiny bodies as they leapt out of the water surrounded by the white splash from their movements. We felt invigorated. Soon after the sky was filled with the colossal fish hunter overhead, more thrilling moments as a charming Osprey soared over.

One of the Bottlenose Dolphins

More rulers of the sky were enjoyed at Strathdearn, White-tailed Eagles against the mountainside with their rectangular wings and pointy diamond tales. With White-tailed Eagle and other raptors in the air again we spotted the icon of wilderness, a young Golden Eagle with its more crescent tail and succulent white infused in its plumage giving it an exotic feel. They circled in the bright blue sky above a line of pines; carefree, effortless as if all was well in the world. Scenes to see which inspire the soul, epitomize wilderness and bring awe and wonder.

The Golden Eagle

Oystercatcher

Common Sandpiper

The Red Grouse

Common Scoters flying over the sea

The Red-throated Diver

Osprey

White-tailed Eagle

[lightningspam]

Don’t worry, Blade (common dolphin sculpture) has a home on my work desk with my Patches the dolphin sculpture c: