TIL that a 1997 study found that crows are particularly vulnerable to being hit by trucks and vans In 1997, researchers at the Southern Institute of Tennessee embarked on a mission— to discover why their nation’s highways were clogging up with dead crows. During studies, they discovered that crows were cooperative, opportunistic scavengers. A murder of crows would survey various highways and roadways searching for road kill, and they would appoint the loudest crow as a “lookout,” with other, larger crows gathering extra food to feed the lookout after the fact. When the lookout observed an oncoming vehicle, it would let out a cry to alert its brethren. Unfortunately, the study found that, while crows are exceptionally skilled at saying “Caw” they’re awful at saying “semi-truck!”