This fact sounds like a hoax, but is actually science. Wombats produce cube-shaped droppings to prevent it from rolling away. It makes them help mark their territory.
Hard to believe, but true, caterpillars dissolve into a liquid form inside the chrysalis. They don't just grow their wings, from this goo, cells reorganise to form a butterfly.
These giant mammals have been observed to grieve the loss of their herd members. Elephants touch the bones and remain near the body for days.
Army ants link their bodies together and form living bridges and rafts. These dynamic structures that they form help them cross gaps or float on water.
Dolphins can hold their breath for about 10 minutes, while sloths can do so for up to 40 minutes. They have a slow metabolism which slows their heart rate, allowing them to hold their breath for longer periods.
Also known as 'immortal jellyfish,' this creature has the ability to live forever. It can revert its cells to a younger state repeatedly, which allows it to start the life cycle over and over again.
Weird but true, these marine creatures have a specialised structure called respiratory tree which connects to the anus. They draw in water, extract oxygen, and then expel the water through their anus.
Many toads and frogs retract their eyes into their heads to help push food down their throat. They don't have teeth to chew food, so their eyes act like plungers during meals.
Even though flamingoes are known for their vibrant pink colours, these creatures are originally born grey. Their pink hue comes from the carotenoid pigments in their diet, primarily from shrimp and algae.
Starfish don't have a brain or a central nervous system. They use their complex network of nerves which also helps them regenerate lost arms.