We’ve all heard of the world’s most massive sharks, both past and present. The megalodon, the great white shark, and the ...

Reality competition TV series are getting extremely niche in their concepts, from finding the best glassblowers (Blown Away) ...

More information: Annaïs Carbajal et al, A New Research Tool for Use in Sharks and Rays: Relevance of Reproductive Hormone Levels in the Skin of Small-Spotted Catshark (Scyliorhinus canicula ...

Specimens of catshark species (Scyliorhinus canicula) The study was carried out by Annaïs Carbajal and Manel López Béjar, researchers at the Department of Animal Health and Anatomy of the UAB, and is ...

Small-spotted catshark embryo (Scyliorhinus canicula), still attached to the yolk sac. This is the stage when the teeth begin developing. Ella Nicklin, Fraser Lab, University of Florida Sharks ...

CT scan of the head of a small-spotted catshark (Scyliorhinus canicula) as it hatches. Skin denticles cover the surface, and colored rows of teeth are present on the jaws.

They were able to determine the levels of sex hormones (progesterone, oestradiol and testosterone) in different stages of maturity and phases of the reproductive cycle of male and female specimens of ...