A father sea catfish keeps the eggs of his young in his
mouth until they are ready to hatch. He will not eat until
his young are born, which may take several weeks.

***

By feeding hens certain dyes they can be made to lay eggs
with varicolored yolks.

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The Canary Islands were not named for a bird called a
canary. They were named after a breed of large dogs. The
Latin name was Canariae insulae - "Island of Dogs."

Siamese fighting fish, also known as Betta Splendens, have
a special respiratory organ that allows them to breath air
directly from the surface.

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Most species of woodpeckers prefer dead trees or "snags,"
and drill out a space for them to nest. Only the Red-
cockaded Woodpecker uses living trees to nest.

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A chimpanzee can learn to recognize itself in a mirror, but
monkeys can't.