Risso's Dolphin
ExploreMammals
Risso's Dolphin
Grampus griseus
Risso's dolphins are friendly creatures that live in the ocean. They are known for their round heads and playful nature, often seen leaping out of the water.
Habitat: Deep ocean waters
Appearance
The Risso's Dolphin has a robust body and a distinctive rounded head with no prominent beak. Its skin is dark gray, becoming almost entirely covered in unique white scars and scratches over its lifetime, making each individual look different.
KingdomAnimaliaPhylumChordataClassMammaliaOrderCetaceaFamilyDelphinidaeGenusGrampus
Category
MammalsRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Risso's dolphins only have teeth in their lower jaw, usually 2 to 7 pairs!
Risso's dolphins sometimes swim and socialize with other types of whales and dolphins!
Their body is often covered in white scars from squid bites and dolphin play!
They love to 'spyhop,' poking their head out of the water to look around!
Special abilities
Ability
Sonar Sense
Risso's Dolphin can use echolocation to find hidden prey in the deep, dark ocean waters.
Ability
Deep Dive Master
Risso's Dolphin can dive hundreds of meters deep to hunt their favorite food, squid.
Ability
Scar Stories
Risso's Dolphin has unique white scars that help scientists identify individual animals like fingerprints.
Measurements & details
- Length
- 260-400 cm
- Weight
- 300-500 kg
- Lifespan
- 30-40 years
- Top Speed
- 30 km/h
- Litter Size
- 1
- Gestation
- 395-425 days
Diet & Feeding
These dolphins mostly feast on yummy squid and octopuses found deep in the ocean.
Primary Foods
- Humboldt squid
- Japanese flying squid
- Warty squid
- Common octopus
Foraging Method
- Pursuit
Ecological connections
eats
Humboldt squid
Dosidicus gigas
A primary food source in warmer waters.
eats
Japanese flying squid
Todarodes pacificus
An important part of their diet in Pacific regions.
eats
Common octopus
Octopus vulgaris
They hunt these on the seafloor.
eaten by
Orca
Orcinus orca
Orcas are known predators of dolphins.
Traits
Wildlife
Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats.
Furry
Furry describes animals possessing a dense covering of soft hair or fur.
Social
Social animals live in organized groups, cooperating for survival benefits such as foraging, defense, and raising offspring.
Piscivorous
Piscivorous organisms are animals that primarily subsist on a diet of fish.
Longevous
This trait characterizes organisms with an exceptionally long lifespan compared to others of their kind.
Aquatic
Aquatic habitats encompass environments where organisms live predominantly in water, including oceans, rivers, lakes, and wetlands.
Marine
Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life.
Also known as
Gray DolphinRisso's Grampus
Collections
Safety
Danger
1/5 · Very low
While Risso's dolphins are gentle, it's best to observe them from a distance in the wild.
Frequently Asked Questions
How long is Risso's Dolphin?
260-400 cm
How much does Risso's Dolphin weigh?
300-500 kg
How long does Risso's Dolphin live?
30-40 years
How fast can Risso's Dolphin move?
30 km/h
What does Risso's Dolphin eat?
These dolphins mostly feast on yummy squid and octopuses found deep in the ocean.
Where is Risso's Dolphin usually found?
Deep ocean waters
How does Risso's Dolphin hunt?
Pursuit
How many babies does Risso's Dolphin usually have?
1
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