Risso’s dolphin

Risso’s dolphin (Grampus griseus) is a medium-sized toothed whale with a blunt head and a pale body marked by scars that accumulate with age.

Grampus griseus: The scientific name of Risso’s dolphin, a member of the oceanic dolphin family Delphinidae. This species is the sole living member of its genus.
Deep diving: The ability of an animal to descend well below the surface while holding its breath. Risso’s dolphin dives to reach squid and other prey at depth.
Scar (animal mark): A lasting mark formed when damaged skin or tissue heals. Tooth-rake scars accumulate on the dolphin’s skin and give adults their pale appearance.
Bycatch: The unintended capture of animals during fishing operations aimed at other species. Entanglement in fishing gear can injure or kill Risso’s dolphins.
Common bottlenose dolphin: A widespread oceanic dolphin species, Tursiops truncatus, with a prominent beak. Its beaked face contrasts with Risso’s dolphin’s blunt, beakless head.
Toothed whale: A cetacean in the parvorder Odontoceti, characterized by teeth and echolocation. Risso’s dolphin belongs to this group of echolocating cetaceans.
Foraging: The search for and acquisition of food by an organism. Its feeding behavior centers on locating prey in the water column.
Species distribution: The geographic area across which members of a species occur. The species inhabits temperate and tropical waters across much of the world.
Marine pollution: The introduction of harmful substances or energy into marine environments. Contaminants can accumulate in long-lived predators that feed high in marine food webs.
Pilot whale: A large oceanic dolphin in the genus Globicephala, with a rounded head. Pilot whales share a bulbous profile but have different body proportions and social patterns.

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