SpeciesHawksbill Turtle
Critically Endangered

Hawksbill Turtle

Eretmochelys imbricata

About the Hawksbill Turtle

The Hawksbill Turtle (Eretmochelys imbricata) is a medium-sized sea turtle named for its narrow, pointed beak, which allows it to reach into crevices in coral reefs to feed on sponges. Adults typically weigh between 100 and 150 pounds and are distinguished by their richly patterned, overlapping scutes, a feature unique among sea turtles. Listed as Critically Endangered on the IUCN Red List, the species has declined by an estimated 80 percent over the last three generations, driven by the illegal trade in its shell, egg collection, entanglement in fishing gear, and the degradation of the coral reef and beach habitats it depends on.

Hawksbill Turtles play a measurable role in coral reef health: by controlling sponge populations, they allow corals to compete more effectively for space on the reef. They nest on tropical beaches across the Atlantic, Indian, and Pacific Oceans, often returning to the same beaches where they were born. Key nesting sites include beaches in the Caribbean, the Coral Triangle of Southeast Asia, and along the coasts of northern Australia. The species is also threatened by climate change, which skews hatchling sex ratios toward females as sand temperatures rise, and by the loss of nesting beaches to coastal development.

Things worth knowing

  • Hawksbill Turtles are the primary predator of sea sponges on many Caribbean reefs, and a single adult can consume several hundred pounds of sponge per year.
  • Their shells, known in the trade as 'tortoiseshell,' were historically used to make jewelry, combs, and decorative objects, and illegal trade in shell products continues to threaten wild populations today.
  • Unlike most sea turtles, Hawksbills can tolerate the chemical defenses of sponges that are toxic to other marine animals, giving them access to a food source few competitors can use.
  • Hatchlings use the natural light gradient of the ocean horizon to orient themselves toward the sea after emerging from the nest, a process that artificial coastal lighting can fatally disrupt.
  • The largest remaining nesting aggregations of Hawksbill Turtles are found in the Coral Triangle, particularly around Indonesia, the Solomon Islands, and Papua New Guinea.
  • Hawksbill Turtles can live for several decades, but females do not reach sexual maturity for an estimated 20 to 40 years, meaning population recovery from decline is exceptionally slow.
Who protects them

2 organizations protect the Hawksbill Turtle