When dragonflies mate, their tails form a love heart.
22
The elephant brain weighs about 6,000g.
274
The head of a jellyfish is called the "Bell."
6
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
255
Dolphins sometimes have fun by blowing bubbles and creating rings of air underwater, which they then swim through.
17