Primates found popping prenatal drug: “A Madagascan lemur has been revealed as the first animal known to

self-medicate when pregnant. Female sifaka eat plants rich in poisonous

tannins in the weeks before giving birth, researchers have discovered.

It is unclear why the sifaka does this. In other mammals, small doses of

tannins kill parasites and stimulate milk production. And vets often use

tannins to prevent miscarriage, raising the intriguing possibility that by

eating the plants the sifaka is protecting its developing baby.” New Scientist