Adaptations
Large bodies store water and energy, helping tortoises tolerate seasonal shortages. Strong column-like legs carry the heavy shell, and differences in neck reach and shell opening are associated with the vegetation structure of particular island habitats.
Behavior and daily life
Tortoises spend long periods feeding, resting, wallowing, and moving along established routes. Some populations migrate seasonally across elevation zones as rain and plant growth change, while nesting females excavate chambers in warm ground.
Conservation
Current profile labelVaries by species and island population
Historic exploitation caused severe declines and extinctions. Current recovery work includes habitat protection, captive rearing, invasive-species control, and monitoring, but status differs enough that the exact island lineage should always be identified.
Different island and volcano populations developed distinct shell forms, including domed shells and saddle-backed shells with a raised front opening.
