Flying fish don't actually fly; they glide. They use their large, wing-like fins to leap from the water and glide for impressive distances, but they don't flap their fins to generate lift like birds. elaborate
Chambered nautiluses have incredibly complex eyes, lacking a lens but still forming a surprisingly sharp image using a pinhole effect. elaborate
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