A Moment of Science
Many organisms possess genes or traits that they do not express.
Learn about the sensitive skin of alligators on this Moment of Science.
What’s particularly striking is the fact that birds and alligators, unlike humans and other mammals, have a hinge-like joint in their pelvis that allows the pubic bone to move. When an alligator or bird inhales the pubic bone rocks downward, expanding the abdominal cavity.
One of the difficulties in this research was getting the creatures to bite like they really meant it, despite the fact that the pole was clearly not edible.
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