Portal:Sharks/Did you know/7


 * ... that the spadenose shark exhibits the most advanced form of placental reproduction in fishes?
 * ... that the dark, puffadder, brown, and Natal shysharks of South Africa are so named because they curl into a ring when threatened and "shyly" cover their eyes with their tails?
 * ... that the daggernose shark can adjust the timing of events in its reproductive cycle by several months?
 * ... that the lollipop catshark is shaped like a tadpole and has an almost gelatinous body?
 * ... that the Australian swellshark can survive out of water for more than a day?