Scientists normally explain the spectacular diversity of animal patterns by pointing to genetics. But a study in Nature suggests that, at least for crocodile heads, different forces might be at play.

Now, in a new study, Milinkovitch and his team reported that the polygonal head scales form due to the growth and compression of skin, which creates a self-organizing pattern of folds. 2 These ...

Many animals get their external marking — such as, feathers, hair or scales-from genetics. But it turns out, the crocodile gets its head patterns differently. (Story aired on ATC on Dec. 11, 202.) We ...