Nest build fresh nests daily out of leaves and other vegetation in which they sleep at night. They sometimes also build nests during the day for resting in. The smaller species of gorilla build their nests in trees, while the larger are confined to the ground. Nests of the western gorilla, the largest species, measure about in diameter. Some species of frog build nests ranging from simple to modest complexity. Many stream-dwelling frogs lay their eggs in a gelatinous mass which they attach to underwater vegetation. The jelly structure prevents the eggs from washing away. Fish engage in nest building activities
The Mammal Society problem that mammals in the British Isles are severely under-recorded, resulting in a lack of mammal conservation progress. The Mammal Society is determined to overcome this by creating a National Mammal Atlas, the first in over 20 years, to provide vital information on mammal distribution and abundance so that informed conservation decisions can be made for species in need. In order to achieve this they are collating national mammal data and records to gather up to date information. The Mammal Society offers a wide range of expert-led training courses for consultants, conservationists and enthusiasts alike, covering ecology, technical skills and