Week 6: Science-Vestigial Structures

Structures that have a common function and suggest common ancestry

The traits of organisms that result from sharing a common ancestor: such traits often have similar embryological origins

A genetically determined structures or attributes that have apparently lost most or all of their ancestral function in a given species

close relative

early ancestor

unrelated organism

embryological stage

the wings of a red-tailed hawk

the hind limbs of a house cat

the fins of sharks

the wings of an ostrich

The solar system

Tail bone

The Pelvis and the Femur

Batman (could be...you never know..)

That Red One

The bone highlighted red was the favorable trait.

They all could fly

provides evidence that two very different animals could have descended from a common ancestor

It is not important because they grow up differently