Musk Ox / Calgary Zoo

With shaggy fur and chunky legs, a baby Musk Ox is taking centre stage at the Calgary Zoo. The calf was born on 23 April to mum Shyia and dad Tlayopi. Though Musk Ox calves are big babies, they have a lot of growing to do before reaching their adult weight of 500 to 800 pounds — via ZooBorns