The female can be removed after spawning because the male may become aggressive towards her.
The young are born in the fall.
Snakes never close their eyes, since they have no eyelids.
Avian eggs are excellent model systems to examine maternal allocation of energy translated through egg size variation.
If not, the snakes might emerge too early in spring only to become sluggish and vulnerable should the weather again turn cold.
After correcting for body size, testis volume was lowest for birds age 1 and 2 years but did not vary with age for males 3 years old or more.
No, it isn't.
There are four other sources that would produce organs that are perfectly matched to the recipient's DNA.
The bright yellow cross-bands that juvenile alligators sport against a black background provide effective camouflage.