{"id":22413,"date":"2025-09-25T13:02:01","date_gmt":"2025-09-25T18:02:01","guid":{"rendered":"https:\/\/blog.msabrookhaven.org\/literary\/?p=22413"},"modified":"2025-09-25T13:28:15","modified_gmt":"2025-09-25T18:28:15","slug":"the-evolution-of-whales","status":"publish","type":"post","link":"https:\/\/blog.msabrookhaven.org\/literary\/2025\/09\/25\/the-evolution-of-whales\/","title":{"rendered":"The evolution of whales"},"content":{"rendered":"\n\n\n

So, I\u2019m sure everyone knows about evolution. The idea and theory that animals evolve overtime to fit their environment. Evolution is a debatable topic. Many people believe that relying on science is the best way to go about discovering once living creatures. Other people believe that evolution shouldn\u2019t be a topic of conversation because it goes against religion. Whatever point of view you have about evolution is okay. There\u2019s no rule or law that says you must believe that everything originated from one animal. I\u2019m just saying that the idea of evolution is cool, and it\u2019s backed up by some solid evidence. So, we\u2019re going to talk about the evolution of whales. There are more than eight animals that scientists identify to be ancestors of whales, but today we\u2019ll only be talking about the median three.\u00a0<\/p>\n

Pakitcetus:<\/p>\n

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Pakicetus is an extinct animal from South Asia that lived during the early Eocene period, about fifty million years ago. It is classified as a cetacean, an aquatic mammal, because it lived around oceans, and had a specialized inner ear that most cetaceans developed. It lived both in and around water, walked on land, and was carnivorous, meaning that it ate fish and other animals to survive. Pakicetus looked more like a wolf than a whale. Scientists who studied the extinct fossil say that it had a snout, tail, and large molars that gave it the ability to break down tough material. The most shocking difference between Pakicetus and other modern-day cetaceans is that it walked on four legs and was covered in fur. Pakicteus is what scientists regard as a transitional ancestor, meaning that it serves as the groundwork for current cetacean creatures and it signifies cetacean\u2019s transition from land to water. There is no specific cause for Pakicetus\u2019s extinction. The animal likely went extinct due to environmental pressures that interfered with how well it could survive.<\/p>\n

Kutchicetus:<\/p>\n

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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Kutchicetus existed during the Early to middle Eocene Era, and like the Pakitcetus, it lived in Pakistan. Many of the animals were also found in India. Kutchicetus is the smallest cetacean, and fossil evidence shows that it also had a snout, like the Pakitcetus. It had a tail, and four limbs that helped it to swim and walk on land. I think this animal was one of the last ancestors of whales to swim and walk. After the Eocene period, there is an event (not sure which) that likely changed all organism\u2019s ability to adapt, so the Kutchicetus won\u2019t have use for four legs, other than for swimming properly. It has a thick tail, hip bones, and elongated vertebrae\/spine. The Kutchicetus has body proportions that are unlike other cetaceans, but similar to other land-living creatures, like otters.<\/p>\n

Dorudon:<\/p>\n

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\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Dorudon lived during the later Eocene period. It was one of the first creatures that evolved to look like the modern whales we know today, except it was a lot smaller. It measured about five meters long. Dorudon didn\u2019t have any legs or body hair, and it lived in warm seas. Many fossils of this creature have been found in Egypt, New Zealand, and West Sahara. I also think this is the first whale to be so widely populated and so well adapted to its environment. Because of Durodon, whales have taken on traits that make them more adapted to swimming, which is what they do best.\u00a0<\/p>\n

If you’re interested in all the different species of early whales, I recommend that you watch a more detailed version of this on YouTube. There is so much information out there that breaks down the habits and biological traits of extinct whale ancestors and other animals. I truly love learning about this, and hopefully in the future, I’ll write more about the other species as well.\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"

So, I\u2019m sure everyone knows about evolution. The idea and theory that animals evolve overtime to fit their environment. Evolution is a debatable topic. Many people believe that relying on science is the best way to go about discovering once living creatures. Other people believe that evolution shouldn\u2019t be a topic of conversation because it … Continue reading “The evolution of whales”<\/span><\/a><\/p>\n","protected":false},"author":107,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,3],"tags":[],"_links":{"self":[{"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/posts\/22413"}],"collection":[{"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/users\/107"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/comments?post=22413"}],"version-history":[{"count":2,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/posts\/22413\/revisions"}],"predecessor-version":[{"id":22425,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/posts\/22413\/revisions\/22425"}],"wp:attachment":[{"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/media?parent=22413"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/categories?post=22413"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.msabrookhaven.org\/literary\/wp-json\/wp\/v2\/tags?post=22413"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}