[sparklite2]

Some of ‘em even change sex.
They’re called transfish.

[livius]

They do. But human beings, who are at the top of the food chain, don’t. No hermaphroditism here!

[Clutch Martin]

I don’t know about anacondas, but female Burmese pythons can carry sperm for up to 10 years and fertilize eggs during that entire 10-year period with the sperm they are carrying from one contact.