Cows as they are today never existed in the wild and were domesticated from aurochs some 10,500 years ago.
6
A lion in the wild usually makes no more than twenty kills a year.
186
Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
12
Cats and dogs can hear ultrasound.
350