Some fascinating new arrivals are set to hatch out at Scarborough Sea Life Centre.
Staff are keeping a close eye on a batch of eggs from a mixture of native sharks, including catsharks (also known as dogfish), bull huss sharks and also some thornback rays.
Senior aquarist Todd German said: “They are laid in tanks throughout the year, but particularly in Spring. “Depending on the temperature they usually hatch within nine months.”
There are about 20 egg cases waiting to hatch out at the moment. New arrivals include three lesser catsharks and one thornback ray.
The most transparent egg cases belong to the lesser catsharks, but all the cases are backlit so members of the public can see the babies inside.
Mr German said: “They’re doing very well.
“When they hatch, the young stay in small tanks for about a month and then they move in with the pipe fish and hoover up any food they miss.”
He added: “Children tend to be excited about sharks - it’s often the adults who aren’t so sure.
“We like to tell people that sharks aren’t to be feared and it’s nice for them to be able to see where they come from.”