Clownfish are all born male and can change sex later in life. elaborate share
Bactrian camels have two humps, unlike their single-humped Dromedary cousins. Each hump stores fat, but they aren't equally filled – the fat is distributed differently depending on the camel's nutritional status. elaborate share
Owls can rotate their heads almost 360 degrees. elaborate share
Shoebills are sometimes called "whaleheads" because of their enormous, shoe-shaped bills. elaborate share
Chameleons can move their eyes independently of each other, allowing them to see in two different directions simultaneously. elaborate share
Chambered nautiluses have incredibly complex eyes, lacking a lens but still forming a surprisingly sharp image using a pinhole effect. elaborate share
Copepods are so numerous that they constitute a significant portion of the Earth's biomass, rivaling even insects. elaborate share