The creature had a long body and short legs with spikes protruding outward from its back, while appendages similar to ...

(Yes, even dolphins.) But in the churn of natural selection, some mammals ended up with appendages that look like they should be found on a reptile, bird, or insect. That’s convergent evolution ...

Starfish are fascinating and contradictory creatures – they may look a bit like stars but they are certainly not fish. As you ...

Adorned with gossamer, leaf-shaped appendages over their entire bodies, they are perfectly outfitted to blend in with the seaweed and kelp formations they live amongst. Endemic to the waters off ...

And that's all thanks to what's inside. We think of ears as these flappy appendages that stick out of our heads. But the most important structures are actually on the inside, and they're known as ...