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The difference between whale, sperm whale and dolphin
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Watching
When to watch cetaceans
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Watching in the Mediterranean
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Identify my cetacean
Identifying by the blow
Ocean currents
Sea level (satellite)
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Seabed types (Bay of Biscay)
GBIF records (Bay of Biscay)
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Offshore wind and cetaceans (France)
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What should you do if you find a stranded cetacean?
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What causes strandings?
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Cetaceans and human culture
A history of whaling
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Encyclopaedia of cetacean researchers: who studies cetaceans
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Audio quiz: recognise the cetacean
Whaling 1900-2025
Cetacean documentaries
Call library
🧭 Explore all the data
Live hydrophones
Whale products
📸 Cetacean photographers
Military marine mammals
Scientific bibliography
Quotations from cetology
Acoustic profile
Fiction films
History of the discoveries
Cetaceans in music
Myths & folklore
Skeletons in museums
Acoustic monitoring (PAM)
Tracking technologies
Education
🧭 Explore all the tools
How to act
Bibliography & media library
For children
For teachers
Breath-hold calculator vs cetaceans
Whale falls
Citizen science
Open data
Watch: the FORESEA dataset
About
Our blog
Contact us
Cetaceans
Mysticetes
Odontocetes
The difference between whale, sperm whale and dolphin
Cetacean evolution
Cetacean records
How to identify a cetacean?
Size comparator
Interactive phylogeny
Interactive anatomy
Famous cetaceans
Ancestral fossils
IUCN status by species
🧭 50+ databases
Freshwater cetaceans
Epibionts & symbioses
Sleep in cetaceans
Etymology of the names
Diets
Life cycles
Brain & cognition
Aquatic behaviours
Swimming performance
Diving physiology
Senses: hearing & vision
Energy & metabolism
Hydrodynamics (Strouhal)
Lactation
Social cohesion
Mating & reproduction
Anatomical counts
Comparative morphometrics
Tools & techniques
Cognitive tests
Sequenced genomes
Hybridisations
Pigmentation variants
Diving records
Thermal preferences
Watching
When to watch cetaceans
Watching calendar
How should you prepare for your whale watching trip?
Whale watching certification labels
HQWW directory and associations
Where to watch whales and dolphins
Watching in the Mediterranean
Map of cetaceans in France
Marine mammals of France
Most recorded cetaceans (GBIF)
Annual migrations
Identify my cetacean
Identifying by the blow
Ocean currents
Sea level (satellite)
Bay of Biscay: plankton & temperature
Seabed types (Bay of Biscay)
GBIF records (Bay of Biscay)
Fishing & ship strikes (Bay of Biscay)
Ships by satellite (VesselFinder)
Offshore wind and cetaceans (France)
Cetacean distribution (DCSMM)
Crozet & Kerguelen
Marine sanctuaries worldwide
MPAs worldwide
Strandings
What should you do if you find a stranded cetacean?
The RNE (Réseau National Echouage) in France
Why study strandings?
What causes strandings?
Stranding map
Chemical pollution
Bycatch
International legal framework
Blue carbon
Climate change
Diseases
Ocean noise
Current demographics
Captivity & sanctuaries
Rescues
Media
Research & discoveries
Cetaceans and human culture
A history of whaling
Cetacean sound library
Video library
Encyclopaedia of cetacean researchers: who studies cetaceans
Research organisations (worldwide)
Audio quiz: recognise the cetacean
Whaling 1900-2025
Cetacean documentaries
Call library
🧭 Explore all the data
Live hydrophones
Whale products
📸 Cetacean photographers
Military marine mammals
Scientific bibliography
Quotations from cetology
Acoustic profile
Fiction films
History of the discoveries
Cetaceans in music
Myths & folklore
Skeletons in museums
Acoustic monitoring (PAM)
Tracking technologies
Education
🧭 Explore all the tools
How to act
Bibliography & media library
For children
For teachers
Breath-hold calculator vs cetaceans
Whale falls
Citizen science
Open data
Watch: the FORESEA dataset
About
Our blog
Contact us
Français
English
The Cetacean Journal
News, discoveries and stories from the marine world!
Latest news from the open sea
Dive into our selection of articles to find out all about cetaceans and their environment.
News
Dolphins strike a sailing boat’s rudder off Dieppe, a behaviour until now seen only in the Gibraltar killer whales
•
31 August 2026
•
Eric GARLETTI
News
A dolphin hunts with a shell, its calf picks it up and does the same three minutes later
•
30 August 2026
•
Eric GARLETTI
News
Alborán Sea: 561 sightings in one month, including 66 encounters with Cuvier's beaked whales
•
29 August 2026
•
Eric GARLETTI
News
Vaquita: between seven and ten individuals, and births all the same
•
28 August 2026
•
Eric GARLETTI
News
Southern Resident killer whales: 76 individuals, the highest level since 2017
•
27 August 2026
•
Eric GARLETTI
News
Summer 2026: the whole Mediterranean counts its cetaceans again
•
26 August 2026
•
Eric GARLETTI
News
The Mediterranean sperm whale: an Endangered population, and plastic in eight stomachs out of ten
•
25 August 2026
•
Eric GARLETTI
News
One month without fishing in the Bay of Biscay: dolphin mortality cut by a factor of two and a half
•
24 August 2026
•
Eric GARLETTI
News
Humpback whales give birth mid-migration, far further south than was thought
•
23 August 2026
•
Eric GARLETTI
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