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Photo of a Whale Shark

Species profile

Whale Shark

Rhincodon typus

Sharks & raysIUCN: Endangered2.4K iNat observations

At a glance

Whale Shark (Rhincodon typus) is an IUCN Endangered shark or ray regulated in 3 of 66 jurisdictions tracked by CatchRules across the U.S. and Canada.

Confirmed by 15 research-grade iNaturalist observations, with Hawaii, Florida, and California the top jurisdictions by observation count.

Listed under MSA and CITES — verify protected-species rules with the issuing agency before retaining or handling.

Notable details

  • The whale shark is the world's largest fish, reaching up to 40 feet in length.
  • Despite its massive size, it feeds entirely by filter-feeding on plankton and fish eggs.
  • Its mouth spans nearly 5 feet wide, lined with thousands of tiny, non-functional teeth.
  • Each whale shark's spot pattern is unique, like a human fingerprint.
  • Scientists estimate whale sharks can live over 70 years.

Protected status

MSA: prohibitedCITES: appendix II
  • Atlantic HMS prohibited.
  • CITES Appendix II (Whale shark). CoP12 (2003).

Always verify protected-species rules with the issuing agency before retaining or handling.

Background

The whale shark is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. An individual with a length of 18.8 m (61.7 ft) has been considered the largest reliably recorded. The whale shark holds many records for size in the animal kingdom, most notably being by far the most massive living non-cetacean animal.

Background excerpt adapted from Wikipedia's Whale Shark article (CC BY-SA). Visit Wikipedia for the full entry.

Photo credit: iNaturalist / Wikipedia. Identification reference only — verify regulations with the issuing wildlife agency before retaining a catch.