Uncharismatic Fact of the Day
Surprisingly enough, mammals aren't the only animals that provide their young with milk! The giant freshwater stingray is one of several species of cartelaginous, live-bearing fish that sustain their young to term through a form of maternal care called histotrophy, in which the mother provides her embryo(s) with nutritional, milk-like secretions known as trophonemata while they're in the uterus.
(Image: A giant freshwater stingray (Urogymnus polylepis) caught and released by Cambodian fishermen, by Chhut Chheana)
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