a whale swimming in the ocean with a lot of fish around it
SharksEndangeredDeclining (estimated >50% over last 75 years) trend

Whale Shark

Rhincodon typus

The whale shark is a very large, slow-moving, filter-feeding shark found in tropical open oceans and listed as Endangered by the IUCN.

Rhiniodon (former classification)

Last Updated Mar 9, 2026 · 2 sources

Photo byNott Peera

Species Guide

What to know about whale sharks

A clean field guide focused on habitat, identification, behavior, and conservation context without burying the useful parts.

The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known living fish species. Individuals reach extreme lengths (the largest reliably recorded measured 18.8 m) and the species is notable for being the most massive living non-cetacean animal. It is the only living species in the genus Rhincodon and the sole extant member of the family Rhincodontidae. Whale sharks feed by filtering seawater through specialized sieve-like gill pads and primarily consume plankton, krill, fish eggs, and small schooling fish such as sardines and anchovies, processing thousands of liters of water per hour. They are highly migratory, traveling long distances across tropical oceans to exploit seasonal food sources, and form large, predictable coastal feeding aggregations at certain sites. Despite their size, whale sharks are generally docile and are not considered a significant threat to humans. The species is listed as Endangered on the IUCN Red List after an estimated population decline of more than 50% over the last 75 years, with primary threats including targeted fishing, bycatch, and ship strikes. Whale sharks inhabit open tropical waters, are rarely found below about 21 °C (70 °F), and have an estimated lifespan of roughly 80 to 130 years based on growth-band studies.

Listed as Endangered by the IUCN due to an estimated population decline of more than 50% over the past 75 years, primarily from targeted fishing, bycatch, and ship strikes.

Highly migratory, traveling long distances across tropical oceans to exploit seasonal food sources; form large, predictable coastal feeding aggregations at specific sites.

The strongest linked planning options currently surface around destinations such as Koh Tao, Mahé, Puerto Princesa + Tubbataha Gateway (Palawan) and countries such as Thailand, Seychelles, Maldives for divers building trips around whale sharks.

Identification

How to identify whale sharks

The visual markers divers can use underwater, plus the species most likely to cause confusion.

Key identification markers

Size

The largest known extant fish species; individuals have been reliably recorded up to about 18.8 m in length.

Filter-feeding anatomy

Possess large, sieve-like gill pads used to filter plankton and small prey from the water.

Body group

A carpet shark (subclass Elasmobranchii, class Chondrichthyes) and the only living member of its genus and family.

Range and Movement

How whale sharks move through the world

The broad range, seasonal movement, or migratory behavior that shapes where divers encounter this species.

Highly migratory, traveling long distances across tropical oceans to exploit seasonal food sources; form large, predictable coastal feeding aggregations at specific sites.

Diet

What whale sharks tend to eat

Useful feeding context that often explains habitat, movement, and encounter style.

Active filter feeder primarily consuming plankton, krill, fish eggs, and small schooling fish such as sardines and anchovies; can process over 6,000 liters of water per hour through sieve-like gill pads.

Conservation

What is happening with Whale Sharks

Status, pressure, and protection context grounded in cited sources rather than filler.

Listed as Endangered by the IUCN due to an estimated population decline of more than 50% over the past 75 years, primarily from targeted fishing, bycatch, and ship strikes.

Main threats

Targeted fishing

Direct fishing for whale sharks has contributed significantly to population declines.

Bycatch

Whale sharks are caught incidentally in other fisheries, adding to mortality.

Ship collisions

Collisions with large vessels pose a risk to these surface-using, large-bodied sharks.

Responsible Encounters

How to dive with whale sharks

Conservation-minded guidance for divers who want the encounter without adding pressure.

Whale sharks are generally docile; divers should avoid disturbing feeding animals, maintain a respectful distance, and follow local regulations at aggregation sites (specific rules not provided in source).

Field Notes

Interesting things worth knowing

Useful species context that makes the encounter more meaningful once you are underwater.

Field notes

Longest-lived estimates

Estimated lifespan is about 80 to 130 years based on vertebral growth band studies and growth rates.

Largest recorded individual

An individual measuring about 18.8 m (61.7 ft) is considered the largest reliably recorded.

Taxonomic uniqueness

The whale shark is the only living species in the genus Rhincodon and the only extant member of the family Rhincodontidae.

Top Destinations

Top destinations to see whale sharks

Destinations surfaced from the linked dive spots associated with this species.

Top Countries

Top countries for whale sharks

The strongest country-level starting points currently linked to this species.

Top Dive Spots

Top dive spots for whale sharks

Directly linked dive spots where this species already shows up in the planning data.

Dhigurah Fish Bank dive spot

Dhigurah Fish Bank

Boat-access reef-and-wall bank with big fish and whale sharks.

4.0
1 dive
AccessSimple entry
CoralMixed health
Marine LifeGreat variety
CrowdVery quiet
Farikede dive spot

Farikede

Boat-only south-point drift for pelagics off Fuvahmulah.

Gordo Banks dive spot

Gordo Banks

Advanced offshore seamount dive for hammerheads and pelagics.

White Rock dive spot

White Rock

Boat-access reef with twin pinnacles, coral gardens, and night-dive appeal.

5.0
1 dive
AccessEasy entry
CoralMixed health
Marine LifeGreat variety
FacilitiesNo facilities
CrowdQuite busy
Dhigurah Beyru dive spot

Dhigurah Beyru

Outer-reef wall dive in Ari Atoll known for current-driven routing and whale-sha

4.5
2 dives
AccessSimple entry
CoralMixed health
Marine LifeGreat variety
CrowdVery quiet
8 mile rock dive spot

8 mile rock

Offshore Koh Lipe pinnacle with strong currents and big pelagics.

FAQ

Frequently asked questions

Clear planning and conservation answers written for search visibility and AI retrieval.

Research Sources

Whale Shark information sources

Primary and credible references behind the field-guide and conservation claims on this page.

Sources 2Last Updated
Whale shark · Encyclopedia · Wikipedia

Primary wildlife guide source.

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