marine-biology

Each new shark discovery updates how scientists understand ocean ecosystems, from deep-sea habitats to coastal food webs. Researchers use genetic analysis, comparative anatomy,...

Sharks and rays are both chondrichthyans, fish whose skeletons are made of cartilage rather than bone. They belong to the subclass Elasmobranchii, which also includes skates and...

The largest great white shark ever reliably documented is a female caught off Prince Edward Island, Canada, in 1988. Verified records indicate she measured approximately 6.1 met...

The pocket shark is a small, deep‑sea shark known from only a handful of specimens. Unlike many familiar sharks, it inhabits cold, mid‑water zones of the northern hemisphere...

Shark interactions along Brazil’s extensive Atlantic coastline are uncommon but well documented. Most incidents involve nonfatal bites in surf zones and shallow water, often l...

When a shark kills a person, it raises public concern and questions about how often this occurs and why it happens. These events are rare but highly visible, and understanding t...

Sharks in Gulf Shores, Alabama, are present year-round but are most active and visible in warmer months when coastal waters see more human use. This evergreen explainer summariz...

Ghost fish are deep-sea fishes adapted to life in the dark, often described as near-transparent, pale, or seemingly invisible inhabitants of the deep ocean. They belong to a bro...

Weird fish in the ocean are species that stand out due to unusual body forms, behaviors, sensory systems, or survival strategies. These traits often reflect extreme adaptations...

Velella velella, sometimes called by-the-wind sailors or purple sails, are hydrozoans that live at the ocean surface. They are not true jellyfish but form a colony of specialize...