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Whale Evolution. Part of the Whales: Giants of the Deep exhibition. The astounding transition came shortly after the rise of modern mammal groups, around 55 million years ago, during a hot period in the Earth’s history. Dinosaurs, other than birds, and large marine reptiles had disappeared some millions of years previously.
The Whale Family Tree. This family tree shows how the ancestors of whales moved gradually from land to sea. Early whales took advantage of abundant marine resources, feeding on the ocean's fish, squid and other larger food. Baleen whales evolved later as polar climates cooled and marine resources became more concentrated, making filter feeding ...
Whales – meet the different species. There are two types of whale; baleen and toothed. The key difference between them is the way they feed and what they have inside their mouth. Baleen whales have baleen plates, or sheets, which sieve prey from seawater. Toothed whales have teeth and they actively hunt fish, squid and other sea creatures.
May 10, 2022 · The newly published research revealed that there have been three rapid bursts of whale evolution the first being 47.8–42 million years ago (Mya). This is when the ancient whales known as ...
Jul 20, 2023 · Examples of baleen whales include the blue whale, fin whale, humpback whale and the right whales; examples of toothed whales include the sperm whale, beluga whale, the bottlenose whales, the beaked whales, and all dolphins (including the killer whale / orca). The blue whale, a baleen whale, is the world's largest animal.
May 31, 2024 · Blue whale, a species of baleen whale, a cetacean, that is the most massive animal ever to have lived. Weighing approximately 150 tons, it may attain a length of more than 30 meters (98 feet). Blue whales are predominantly blue-gray animals whose lower surfaces are lighter gray or white.
All whales and dolphins can be divided into two categories: baleen whales and toothed whales. Toothed whales include the sperm whale, beaked whales, dolphins, porpoises and the beluga whale and narwhal. We have also included seal species seen in the Plymouth area where WDC's Marine Animal Rescue and Response (MARR) team responds to stranding ...
