Risso's Dolphin
Grampus griseus
Summary 2
Risso's dolphin (Grampus griseus) is an ocean dolphin. Risso's Dolphins are found on continental shelf areas throughout the world. Their greyish white scared bodies are instantly recognizable; animals lighten with age as they acquire more scars. Risso's dolphins feed exclusively on squid, often diving very deep at dawn and dusk as their prey migrates vertically.
Length 8.5-12.5 ft (2.6-3.8 m)
Weight 660-1,100 lb (300-500 kg)
Population and Conservation Status 3
No Global Population estimate is known however good estimates are known for many areas. The Global Population is likely more than 150,000 animals.
The Risso's Dolphin is classified as Least Concern
Sources and Credits
- (c) Christine Veeschkens, some rights reserved (CC BY-NC-ND), http://www.flickr.com/photos/29163896@N02/3493998652
- Adapted by Bodacious Dream - Dave Rearick from a work by (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Grampus_griseus
- (c) Bodacious Dream - Dave Rearick, some rights reserved (CC BY-SA)
More Info
- iNat taxon page
- Animal Diversity Web
- ASM Mammal Diversity Database
- Atlas of Living Australia
- Biodiversity Heritage Library
- BOLD Systems BIN search
- CalPhotos
- Global Biodiversity Information Facility (GBIF)
- iNaturalist Mammal Working Group
- Maryland Biodiversity Project
- NatureServe Explorer 2.0
- NBN Atlas
- VertNet
- 日本のレッドデータ検索システム
