The Weird Reason Dolphins 

Drink Each Other’s Pee

Dolphins get

 to know their friends by tasting their pee, a new study finds.

By sampling sips of each

 other's urine, dolphins demonstrated a type of social recognition that begins with an exchange of whistles that are unique to specific individuals 

Scientists have long

 known that dolphins identify themselves using signature whistles that are different for each dolphin

Recently, scientists learned

 that not only do bottlenose dolphins demonstrate name recognition, they also replicate this recognition with another sense: taste.

By tasting each other's

 urine the dolphins showed that they could keep track of dolphin identities using two types of sensory input.

This means the animals 

could create and store a mental concept of other dolphins, according to the new study.

Possible Early Tau Herculid 

Meteors Caught on Camera