The fins of the scalyhead sculpin are related to our arms.
This activity supports the film The Origin of Species: Lizards in an Evolutionary Tree. Students are guided to sort the lizard species by appearance, then generate a phylogenetic tree using the lizards’ DNA sequences to evaluate whether species that appear similar are closely related...
The shape of our hands comes from tree-dwelling ancestors.
A close-up view of the sound-producing structure on the wing of a field cricket (Gryllus pennsylvanicus).
The Lizard Evolution Virtual Lab app lets you explore the evolution of the anole lizards in the Caribbean on your iOS device.