2 October 2024
The diagram above, from Arizona State College’s Ask A Biologist, reveals that beneath our pores and skin people, birds and bats all have the identical bones in our arms/wings however the bones have developed to match our existence.
We people use our arms to succeed in and our fingers to seize and manipulate. Birds and bats use their “arms” for flying. You possibly can see it in our bones.
Every bone has modified in comparison with people.
Huge adjustments begin on the wrist with big adjustments within the “fingers” and fingers.
Birds have solely two “fingers” and their “thumbs” (the alula) are used just for gradual flight maneuvers.
See extra within the authentic article at Ask A Biologist: Human, Fowl, and Bat Bone Comparability
(diagram from asu.edu Ask A Biologist coloring pages for teenagers, CC BY-SA)
