Their egg cases are sometimes referred to as mermaid's purses ... This is known to occur in sand tiger sharks (Carcharias taurus). Placental viviparity occurs in some species of shark - once the yolk ...

SYDNEY — A tiger shark has surprised Australian scientists ... Echidnas — which are only found in Australia and New Guinea — are egg-laying mammals, have spines protruding from their bodies ...

Since opening in 2002, Aqua World has been trying to breed the sand tiger shark, a viviparous species whose eggs hatch inside the womb. The keepers found the rutting season for the male shark that ...

By setting up a tiny filming studio behind the scenes at the National SeaLife Centre in Birmingham, we were able to get a unique and privileged view actually inside a shark’s egg. We were able ...

Often referred to as “dustbins of the ocean” Tiger sharks are known for eating some strange things and are often thought of as mindless eating machines. But in actual fact, these sharks are ...