Pygmy hippopotamus unusual secretion as common hippos, that gives a pinkish tinge to their bodies, and is sometimes described as "blood sweat" though the secretion is neither sweat nor blood. This substance, hipposudoric acid, is believed to have antiseptic and sunscreening properties. The skin of hippos dries out quickly and cracks, which is why both species spend so much time in water. The skeleton of "C. liberiensis" is more gracile than that of the common hippopotamus, meaning their bones are proportionally thinner. The common hippo's spine is parallel with the ground; the pygmy hippo's back slopes forward, a likely adaptation to pass
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