In 2011, a male tiger in India adopted a litter of orphaned cubs, taking on the role of ‘mother’. Wildlife officials say such behavior had never been observed before.
9
The Basenji dog is the only dog that is not able to bark.
4
Cats and dogs can hear ultrasound.
350
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Cats sleep for 70% of their lives.
8
The seahorse is the only fish to have a neck.
12