Biodiversity loss isn’t just about losing species — it’s about losing the evolutionary traits and ecological roles that make those species unique. A new study on requiem sharks (Carcharhinus) shows ...

Italian naturalist, Camilo Ranzani's original 1840 illustration of Carcharhinus porosus, known as the smalltail shark, taken from the Center For Biological Diversity's suit filed in Feb. 2025 against ...

Governments at a wildlife trade conference have adopted greater protections for over 70 species of sharks and rays amid concerns that overfishing is driving some to the brink of extinction. The ...

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 ...