This shark gets its name from an unusual behaviour it displays when threatened by a predator. When threatened, the swell shark swallows vast amounts of seawater, which causes its belly to swell and ...

Not all creatures need to breed to produce offspring. Animals like zebra sharks and killifish are redefining what scientists thought they knew about asexual reproduction. Among vertebrates, or animals ...

Aquarium staff in Louisiana have been left baffled by a miraculous 'virgin birth' in their shark exhibit. 'Yoko' the young swell shark (Cephaloscyllium ventriosum) was born in an all-female tank at ...