I heard on the wireless this morning that some bloke in sydney found a port jackson shark egg and nurtured it at an aquarium and hatched it out and released it into the harbour. Is this a load of B/S? I thought sharks didnt lay eggs?
Some sharks definately do lay eggs (eg/ port jacksons), some also give birth to live young (eg/ tiger sharks). The egg case of a port jackson is known as a 'mermaid's purse', it's kinda leathery, a bit like kelp, with little tendrils that anchor it to the kelp or rocks.