Did you know that this shark lays egg cases?

Small-spotted dogfish have internal fertilization and lay egg capsules from January to July. These yellowish capsules are oblong and about 5-6 cm long. It has a thread in each corner that it wraps around e.g. algae so that the egg capsule remains stable for the 5-11 months it takes to hatch.

Did you also know that small-spotted dogfish are nocturnal? These are common along the entire Norwegian coast south of Troms, but most common up to Trondheim, and can be found sleeping on the seabed during the day.