Loggerhead sea turtle

Presentation

The loggerhead sea turtle is a large marine turtle recognizable by its particularly bulky head and reddish-brown colored shell. It is one of the largest sea turtles today, capable of traveling thousands of kilometers across the world's oceans.

The loggerhead sea turtle has an ovoid, slightly convex shell colored brown to reddish, with a disproportionately large head equipped with powerful jaws. Its four limbs are transformed into flat, tapered flippers adapted for ocean swimming. The skin is generally grayish to dark brown.

Characteristics

Indicative values: they vary by subspecies, sex and region.

Habitat and distribution

The loggerhead sea turtle primarily occupies the pelagic and coastal zones of tropical, subtropical and temperate oceans. It inhabits open waters but approaches coasts and shorelines for feeding and breeding. It also frequents bays, estuaries and transitional zones between oceanic and coastal waters.

Behaviour

The loggerhead sea turtle is a remarkable ocean swimmer, capable of undertaking long migrations between feeding and breeding sites. It surfaces regularly to breathe and spends much of its time in open waters. Although mostly solitary, it can form aggregations during breeding periods.

Reproduction

Female loggerhead sea turtles return to land, often to the same place where they were born, to lay their eggs in the sand. A female typically lays between 100 and 150 eggs in a nest dug on the beach. Incubation lasts approximately 7 to 10 weeks, after which the young turtles head to the ocean. Sexual maturity is reached between 35 and 50 years of age.

Peculiarities

The loggerhead sea turtle has an exceptionally large head, from which its common name derives. Its chewing muscles are extraordinarily powerful, allowing it to crush hard shells. It is equipped with magnetic sensors that give it remarkable navigational ability over very long distances. It is also capable of thermoregulation to maintain a slightly higher body temperature than the surrounding water.

Threats and conservation

The loggerhead sea turtle faces several major threats. Accidental capture in fishing nets and hooks constitutes significant mortality. Marine pollution, particularly plastic debris that it mistakes for natural prey, represents a growing threat. Destruction of nesting beaches by coastal development, climate change affecting breeding sites and egg predation are other major challenges.

References

UICN — Liste rouge des espèces menacées

Profile updated 08 August 2026 · Reviewed by the TunisieVet editorial team.

CONSERVATION STATUS

Vulnerable (VU)

IUCN source, latest published assessment.

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