One baby shark grows inside it. A thin, tough membrane, or inner eyelid present in the eyes of many sharks. It can be drawn across the eye to protect if it from damage. Nocturnal Active at night and inactive during the day. Oviparous Laying eggs instead of giving birth to live young.
Some sharks are oviparous.
Ovoviviparous Giving birth to live young which have developed from eggs that hatched within the mother's body. Some sharks are ovoviviparous. Pectoral fins Paired fins, located just behind or below the gill slits, and used for lift and movement control. Predator An animal that hunts, kills, and eats other animals. A shark is a well-adapted predator.