Cows have best friends?
Cows have best friends – Studies have shown that cows can form strong bonds with each other, and they become stressed when separated from their close companions.
You can hear a blue whale’s heartbeat from two miles away – The blue whale, the largest animal on the planet, has a heart that can weigh as much as a small car.
Sharks can live for hundreds of years – The Greenland shark holds the record, with some individuals living up to 500 years.
Sloths can take up to a month to digest food – Their metabolism is so slow that a single leaf can take about 30 days to be processed fully.
Rats laugh when tickled – Believe it or not, rats can actually laugh when they're tickled. The sound is too high-pitched for humans to hear without special equipment.
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