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  3. Giant Manta

Giant Manta (Mobula birostris)

Cartilaginous fish · Myliobatiformes · Mobulidae

Giant Manta

Mobula birostris

Endangered

At very high risk of extinction in the wild in the near future.

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It has the largest brain-to-body ratio of any known fish. Its extremely low reproductive rate makes it acutely vulnerable to overfishing and bycatch.

Weight

up to 3 t

Size

4.5 m – 9 m

Life expectancy

45 years

Diet

Omnivore

Combines animal and plant food depending on availability.

Activity

Irregular activity

Active at irregular times, by day or night depending on circumstances.

Social structure

Solitary

Lives and hunts alone, joining others only to breed.

Ocean
108countries19parks28dive sites1same family4featured routes

AI-generated images: illustrations, not photographs.

Fun facts

  • It has the largest brain relative to body size of any fish in the world.
  • It has the highest brain-to-body ratio of any known fish.
  • It produces just 4 to 7 pups in its entire lifetime, one of the slowest rates among sharks and rays.
  • It feeds by filtering zooplankton with its specialised cephalic lobes.
  • It is the largest ray in the world, reaching up to 9 metres across the disc.
  • It has only one pup every 2 to 5 years, which leaves it highly vulnerable to overfishing.
  • anatomíaRelative to its body, it has one of the largest and most complex brains of any known fish.

Life cycle and biology

Skeleton type
Vertebrate - cartilaginous skeleton (fish)
Habitat and environment
Tropical and subtropical ocean waters worldwide, near reefs and seamounts and in the open sea
Birth weight
1.4 m disc width; ~9 kg at birth
Size at birth
1.4 m disc width at birth, already looking like a miniature adult
Sexual maturity
8-10 years
Gestation / incubation
~12-13 months
Litter / clutch size
1 pup (rarely 2), with 2-5 years between births

Sources consulted: Animalia.bio · A-Z Animals · Dimensions.com · Australian Geographic · Manta Watch NZ · Namubak · Manta Trust · Grokipedia (Giant oceanic manta ray) · NOAA Fisheries

Where to find it

Loading map…

Where to see it

Parks and dive sites where this species has been documented — showing 20 of 47.

Related species

Other species in the catalogue with the most in common with Giant Manta — same habitat, park, country, tags or family.

Same taxonomic family
Shares a park
Shares a park
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How to help

The giant manta is classified as endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.

It's documented in 19 protected areas — one reason why protecting these places matters for its conservation.

Keep exploring

Based on what we already know about giant manta.

Share an experience, a fun fact or a tip for seeing the giant manta.
One of the 2 manta rays on WAnimals
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The pins mark the parks and dive sites where its presence is documented.

See its range on the interactive map→
KomodoIndonesia
Galápagos National ParkEcuador
Revillagigedo ArchipelagoMexico
Cocos IslandCosta Rica
Fernando de NoronhaBrazil
AldabraSeychelles
Ras MohammedEgypt
Great Barrier ReefAustralia
NingalooAustralia
Rock Islands of PalauPalau
Darwin IslandEcuador
Wolf IslandEcuador
Cocos IslandCosta Rica
Malpelo IslandColombia
Fernando de NoronhaBrazil
Revillagigedo Islands (Socorro)Mexico
Raja AmpatIndonesia
Komodo National ParkIndonesia
Nusa Penida (Manta Point / Crystal Bay)Indonesia
Similan IslandsThailand
See all 19 parks
See all 28 dive sites
Reef Manta RayVulnerable

Reef Manta Ray

Mobula alfredi

Whale SharkEndangered

Whale Shark

Rhincodon typus

Green TurtleEndangered

Green Turtle

Chelonia mydas

Spotted Eagle RayEndangered

Spotted Eagle Ray

Aetobatus narinari

Humphead WrasseEndangered

Humphead Wrasse

Cheilinus undulatus

Endangered

Golden Sandfish

Holothuria scabra

CountriesIndonesia
ParksKomodoIndonesia
TagsOmnivore
Omnivore
Variable activity
Solitary
Endangered
Vulnerable
Fish
Ocean

North America33

Africa24

Asia24

Oceania20

South America7

Indonesia
Ecuador
Australia
Costa Rica
Mexico
Mozambique
Anguilla
Antigua and Barbuda
Aruba
Bahamas
Barbados
Belize
Bermuda
British Virgin Islands
Cayman Islands
Costa Rica
Cuba
Curaçao
Dominica
Dominican Republic
El Salvador
Grenada
Guadeloupe
Guatemala
Haiti
Honduras
Jamaica
Martinique
Mexico
Nicaragua
Panama
Puerto Rico
Saint Kitts and Nevis
Saint Lucia
Saint Vincent and the Grenadines
Trinidad and Tobago
Turks and Caicos Islands
U.S. Virgin Islands
United States
Angola
Cabo Verde
Cameroon
Comoros
Djibouti
Egypt
Eritrea
Gabon
Gambia
Guinea-Bissau
Kenya
Madagascar
Mauritania
Mauritius
Mayotte
Mozambique
Réunion
São Tomé and Príncipe
Senegal
Seychelles
Somalia
South Africa
Sudan
Tanzania
Bangladesh
Brunei
Cambodia
China
India
Indonesia
Israel
Japan
Jordan
Malaysia
Maldives
Myanmar
Oman
Pakistan
Philippines
Saudi Arabia
Singapore
Sri Lanka
Taiwan
Thailand
Timor-Leste
United Arab Emirates
Vietnam
Yemen
American Samoa
Australia
Cook Islands
Fiji
French Polynesia
Guam
Kiribati
Marshall Islands
Micronesia
Nauru
New Caledonia
Niue
Northern Mariana Islands
Palau
Papua New Guinea
Samoa
Solomon Islands
Tonga
Tuvalu
Vanuatu
Brazil
Colombia
Ecuador
French Guiana
Guyana
Suriname
Venezuela