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TIL that most cats are lactose intolerant so giving them cow's milk can actually cause significant health issues

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epjE5 TIL that tracking habits daily can significantly improve goal achievement by reinforcing positive behaviors and increasing self-awareness.
Vjd0 TIL: Stereotype accuracy is one of the largest relationships in all of social psychology. Stereotypes are more valid than most social psychological hypotheses.
OG064 TIL That some birds participate in what’s known as “Mafia Behavior”, where a bird will lay an egg in another birds nest and if that bird rejects their egg/chick, the parasitic bird may return and kill the host’s chicks or destroy their nest.
a8GrJ TIL that female Adélie penguins trade stones for sex during a shortage of stones. Extra-pair copulation often occurs at the male's nesting site, after which the female takes one or more stones. In contrast, when it occurs at the female's nesting site, the male doesn’t take a stone.
LxPm TIL: Of the existence of musical roads, which when driven over causes a tactile vibration and audible rumbling transmitted through the wheels into the car body in the form of a musical tune.