NEWS
Today the brand new book "Sex in Cetaceans" was published, including free open access! Chapter 13 is about mating strategies in Risso's dolphins introducing new findings such as female choice and male-calf care ! Have a look and discover what a great species they are! ... See MoreSee Less

Sex and Sexual Strategies in Deep-Diving Risso’s Dolphins
link.springer.com
Risso’s dolphins (Grampus griseus) in the Azores maintain a sexually stratified community with males forming stable clusters, whereas females tend to associate in temporally stable units when calvin...- Likes: 31
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Proficiat Pieter en Karin, wat gaaf.
Gefeliciteerd karin en pieter
False killer whales today mixed with bottlenose and common dolphins together with crazy wind and waves on our possibly last survey for 2023.. ... See MoreSee Less


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Males going crazy just before having dinner.. ... See MoreSee Less


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This season has not been an easy one: many days are passing by without finding our key species the Risso’s dolphin, despite our intense efforts to find them.
But there are also mornings when we see blows and large torpedo shaped bodies that pierce through the swell. On August 6, a large group (75/100) of False killer whales was passing by and at start they were mixed with Pilot whales, some Risso’s dolphins and Bottlenose dolphins. At first, the field was spread-out, and then the species got together for a “social foraging banquet” on blue fin tuna. The encounter with these magnificent top predators was beautiful and impressive as you can see in this video.. (sound on!!!).
Thanks to lookout Adrien Laydevant for finetuning our route towards them 😃!
Look for a higher resolution at:
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Wow! That's amazing footage. I hadn't realised they were so vocal 😮
Oh just spectacular! You are so fortunate to have these encounters. I admit I have a real fascination with pseudorca and I love their close approaches and squeeeeeeeeks!
Great video
What an amazing encounter....
Amazing!
Synchronisation 😍
Wow, echt mega 👍
En dat op mijn verjaardag. Sounds good. 😋
WOW! This is amazing! I didn't know that false killer whale noses were so prominent!!! There is one who looks like an old bloke with a big potato nose!
Wow
Te gek
ZO MOOI!
Crazy mixed species days, lately!
(Spotted dolphins and pilot whales)
(Risso's and bottlenose dolphins)
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Beautiful pictures! So clear!
Wait interesting, we get Risso's-Bnose associations here too
On July 18 we had an exceptional visit of 3 Sowerby’s beaked whales, checking us out. Two animals were swimming synchronised. Encounters like these make you realise that we know so little about them and yet they are so interesting and beautiful.... ... See MoreSee Less
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夢想啊!
Amazing footage! I’m so jealous
This is amazing
LOSING MY MIND OVER THIS!!! WOW!!!
Amazing encounter
Another beautiful post!
Supergaaf!
Wat een geweldige filmbeelden Karin!!!
Since yesterday our “4 Continents Team” is now only covering 3…Audra (USA), our acoustic expert left us after a hectic but good period! Thank you, Audra for your passion, humor and hard work!
We collected many hours with the Soundtrap and the hydrophone array system, which will hopefully broaden our knowledge about the acoustic world of Risso’s dolphins ..
At least we will always have the “chatty” dolphins’ whistles and the metronomic sounds of the Spermwhales… Gramping on with Adrienne (Australia) and Jing and Iris from Taiwan!
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Nice one!!!
Goeie foto!!
Every year THEY drive us crazy, and therefore, the spare moments that they actually show little bits of their hidden lives are soooo precious. ... See MoreSee Less

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I remember the summer of 2013, which was so wonderful for seeing them.
Whatever year we saw them was pretty amazing! 😍 I’ll never forget their heads dunking together, such a crazy sound. So early and quiet on the water 💙
Geweldig!
They show themselves but never to me... yet 🤪
Wat zijn ze mooi😍
What a precious face! What kind of dolphn is it Nova Atlantis Foundation
Astrid Robberegt Deze hebben wij dus gezien
Loooove it! Hyperoodon??
Risso's dolphin' male contest competition is often displayed by "headbutting" events and they can be highly aggressive (open beaks!) and intense...wow.. Another reason why not to swim with this species... ... See MoreSee Less




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Stunning images!! Frank Dhermain
Megumi Matsuda
Amazing pictures !
Cetal Fauna!
Hiroko Suzuki
awesome pictures! I never saw the Risso`s acting like this (and their teeth)
Janis Millu Bijin Chihiro
So true--being in close proximity to the power of dolphin males fighting is extremely sobering.