no
some animals actually go through 'puberty' once a year, so they'd be having an awful lot of periods.
I imagine chimps, gorillas etc might do. Fish...probably not
(
0800221155 Coldseal windows,
Sat 16 Apr 2005, 20:11,
archived)
all mamals get period
just not as much as humans do.
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Laini,
Sat 16 Apr 2005, 20:13,
archived)
sharks aint mammals tho.
(
MadPhish | Not a clue,
Sat 16 Apr 2005, 20:22,
archived)
Kind of...
... but pigs for example just re-absorb the blood.
(
JamesG,
Sat 16 Apr 2005, 20:56,
archived)