What are the jackass penguin's adaptations?

Penguins are adapted primarily to cool aquatic environments, and the need to reduce heat loss is of major importance to all penguins. However some species, including the African penguin, have been able to successfully exploit warm terrestrial environments. Behavioural and physiological adaptations have enabled the African penguin to overcome the problem of being over-insulated for life on land in a temperate climate.

One of the ways in which African penguins have adapted to terrestrial life in the temperate zone is to confine their activities at breeding sites largely to dawn and dusk periods. Breeding birds nest mostly in burrows or under some other form of shelter, such as boulders and bushes, which provide some protection from the intense solar radiation during the day. Birds that are not incubating or brooding chicks, and other non-breeding birds, spend the day at sea or loaf in beach groups and swim regularly. Some birds do remain in the open in the colony; but these birds generally orientate themselves with their backs to the sun so that their feet, flippers and oral surfaces are shaded. Physiological responses to heat stress include panting (evaporative cooling) and moderate hypothermia.