The Nature of Things
Galapagos: Ways of Survival
Specials • E4 Sep 25, 1966 45m
Apart from their external appearance, animals go through behavioural and physiological changes to adapt themselves to different environments: for example, acquiring the ability to drink salt water. Galapagos examples seen in this program include sea lions, sea birds and the marine iguana, a cold-blooded reptile which has adapted itself to endure the cold waters of the sub-Antarctic Humboldt current.