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Description

What you're looking at may seem like just a particularly goofy looking fish. In reality, Tiktaalik is the earliest found vertebrate with adaptations for moving on land. Therefore, it and similar species are likely the ancestors of all tetrapods. It was still a fish through and through, but it possessed a lung, and its 'fins' had well developed ingredients for shoulders, wrists, and elbows, as well as an independently mobile neck. Living in the Canadian Arctic around 375 million years ago, Tiktaalik's adaptations weren't so much focused on accomplishing some dramatic crawl onto the shore, but rather may have helped it maneuver through reedy swamps and across short bits of land when it needed to move to a pond with more oxygen in it.

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Description

What you're looking at may seem like just a particularly goofy looking fish. In reality, Tiktaalik is the earliest found vertebrate with adaptations for moving on land. Therefore, it and similar species are likely the ancestors of all tetrapods. It was still a fish through and through, but it possessed a lung, and its 'fins' had well developed ingredients for shoulders, wrists, and elbows, as well as an independently mobile neck. Living in the Canadian Arctic around 375 million years ago, Tiktaalik's adaptations weren't so much focused on accomplishing some dramatic crawl onto the shore, but rather may have helped it maneuver through reedy swamps and across short bits of land when it needed to move to a pond with more oxygen in it.

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www.patreon.com/posts/58002144