cetacean : any of an order (Cetacea) of aquatic mostly marine mammals that includes the whales, dolphins, porpoises, and related forms and that have a torpedo-shaped nearly hairless body, paddle-shaped forelimbs but no hind limbs, one or two nares opening externally at the top of the head, and a horizontally flattened tail used for locomotion — Webster See also OneLook
Cetacea is an infraorder of aquatic mammals that includes whales, dolphins, and porpoises. Key characteristics are their fully aquatic lifestyle, streamlined body shape, often large size and exclusively carnivorous diet. They propel themselves through the water with powerful up-and-down movement of their tail which ends in a paddle-like fluke, using their flipper-shaped forelimbs to maneuver. — Wikipedia
Cetology is the branch of marine mammal science that studies the approximately eighty species of whales, dolphins, and porpoises in the scientific order Cetacea. — Wikipedia
Mammalogy is the study of mammals – a class of vertebrates with characteristics such as homeothermic metabolism, fur, four-chambered hearts, and complex nervous systems. Mammalogy has also been known as “mastology,” “theriology,” and “therology.” The major branches of mammalogy include natural history, taxonomy and systematics, anatomy and physiology, ethology, ecology, and management. — Wikipedia
Cetologists , or those who practice cetology, seek to understand and explain cetacean evolution, distribution, morphology, behavior, community dynamics, and other topics. — Wikipedia
Cetacean (EurekaAlert, American Association for the Advancement of Science)
Cetacean (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Cetacean (Science Daily)
Cetacean (Science News)
Cetacean (NPR Archives)
Dolphins and Whales News -- ScienceDaily Whales and dolphins. Whale songs, beaching, endangered status -- current research news on all cetaceans.
- Study reveals influence of krill availability on...on January 23, 2023 at 8:15 pm
Scientists show reduced krill supplies lead to fewer pregnancies in humpback whales -- a finding that could have major implications for industrial krill fishing. Data from Antarctica show more humpback whales get pregnant after years with abundant krill than after years when krill were less plentiful.
- Toxic toilet paper and long-lasting chemicals...on January 12, 2023 at 6:47 pm
A chemical used in the production of toilet paper and 'forever chemicals' have been found in the bodies of orcas in B.C. , including the endangered southern resident killer whales. Scientists analyzed tissue samples from six southern resident killer whales and six Bigg's whales stranded along the coast of B.C. from 2006 to 2018, according to a recent study. They discovered that chemical pollutants are prevalent in killer whales, with a chemical often found in toilet paper one of the most […]
- Dolphins 'shout' over loud underwater noise to...on January 12, 2023 at 4:32 pm
Dolphins are social, intelligent animals who rely on whistles and echolocation to hunt and reproduce. This means that noise generated from human activity such as drilling and shipping has the potential to negatively impact the health of wild dolphin populations. A study demonstrates that dolphins 'shout' when trying to work together in response to increasing underwater noise levels.
- New activity trackers for dolphin conservationon December 22, 2022 at 5:31 pm
Just like a smartwatch can tell its wearer how many calories they consume during exercise, data from dolphin wearables can now be used to estimate how much energy dolphins use when they swim.
- Whales could be a valuable carbon sink, say...on December 15, 2022 at 5:07 pm
Nature-based solutions to fight climate change take a holistic approach that promotes biodiversity and ecosystem preservation. While many efforts have focused on planting trees or restoring wetlands, researchers now also advocate for the importance of understanding the carbon sequestration potential of the planet's largest animals -- whales. Researchers explore how these marine giants can influence the amount of carbon in our air and waters and potentially contribute to the overall reduction of […]
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- New virus discovered in whales, dolphins across...on January 26, 2023 at 9:32 pm
A novel virus, potentially fatal to whales and dolphins, has been discovered by researchers at the University of Hawaiʻi Health and Stranding Lab. Prior to its discovery in 10 whale and dolphin host species across the Pacific, the virus was found in only a single marine mammal worldwide, a Longman's beaked whale stranded on Maui in 2010. The findings are published in Frontiers in Marine Science.
- Offshore wind farm construction is noisy—but...on January 19, 2023 at 6:50 pm
The European Union had 14.6 gigawatts (GW) of offshore wind energy installed in 2021, and this is projected to increase by at least 25 times in the next ten years. While an expanding renewable energy sector is necessary to replace fossil fuels and slow climate change, it must not come at a cost to Earth's embattled wildlife.
- The genes that made whales giganticon January 19, 2023 at 4:45 pm
New research published in Scientific Reports reveals the genes that likely allowed whales to grow to giant sizes compared to their ancestors. The findings highlight the role of four genes (called GHSR, IGFBP7, NCAPG, and PLAG1), and suggest that they promote large body sizes while mitigating potentially negative effects, such as increased cancer risk.
- New research shows porpoises not harmed by...on January 18, 2023 at 2:45 pm
Researchers in Scotland have developed a tool to help ensure porpoises are not being harmed by the construction of offshore wind farms, which are crucial for scaling up renewable energy globally.
- Joint effort discloses deep divergence of a...on January 17, 2023 at 6:51 pm
The finless porpoise, a relative of dolphins and whales, is native to the Indian and Pacific oceans, as well as the freshwater habitats of the Yangtze River basin in China. The Yangtze river's finless porpoise is one of the very few porpoises that live in fresh water. Its small size and cute 'smile' make it much loved in the country and beyond.
Here are links to pages about closely related subjects.
Tree of Life
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human