Hawksbill turtles have relatively crude navigational skills

animal-navigationhawksbill-turtlemarine-biologymigration

Abstraction: Tagged hawksbill turtles take circuitous migration routes indicating low navigation precision

Key points:

22 female hawksbill turtles in the Chagos Archipelago (Indian Ocean) were electronically tagged and tracked; all nested on Diego Garcia Island
Turtles consistently took indirect, meandering routes between foraging areas and nesting sites, never traveling direct paths even when food-deprived
Circuitous routing persisted even when turtles had strong motivation for speed (months without eating before returning to foraging grounds)
Researchers conclude the behavior reflects a genuine limitation in navigational precision, not casual swimming choice
Hawksbill routes are inherently more complex (frequent turns, depth changes) than other migrating species, which may compound navigation demands
Published in Journal of the Royal Society Interface (DOI: 10.1098/rsif.2021.0859)

Connections: Animal Navigation · Biological Navigation