SAN DIEGO — For the first time ever, researchers have captured video of three endangered zebra sharks mating in the wild in the South Pacific, providing scientists worldwide with unprecedented ...

Sharks have been around longer than trees (that’s a fact you’re just going to have to accept, because things get much stranger from here). Alongside other cartilaginous fishes like rays and chimaera, ...

Sharks, skates and rays adapt their growth and reproduction to changing food availability, a new study reveals. Led by Newcastle University, the study analysed how many young and how quickly a ...

Researchers from the UAB have shown that sex hormones accumulate in the skin of sharks. This finding opens a new way for the evaluation of their reproductive status by the biopsy of a sample that can ...

Named for the distinctive gray stripes on the sides of their bodies, tiger sharks are one of the 50-60 requiem shark species within the order Carcharhinidae. Tiger sharks typically average 10-14 feet ...

Forbes contributors publish independent expert analyses and insights. Márquez is a marine scientist and science communicator Sand tiger shark in an aquarium. (Photo by: BlueRed/REDA/Universal Images ...

Systematics and body form / Leonard J. V. Compagno -- Integumentary system and teeth / Norman E. Kemp -- Endoskeleton / Leonard J. V. Compagno -- Muscular system: gross anatomy and functional ...