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
Japanese pygmy woodpecker three weeks. The species has a large range and a stable population, so the IUCN has assessed it as a least-concern species. Japanese pygmy woodpecker The Japanese pygmy woodpecker or pygmy woodpecker ("Yungipicus kizuki") is a species of woodpecker. It is found in coniferous and deciduous forests in Russia, China, North Korea, South Korea and Japan. This species has also been placed in the genus "Dendrocopos" or "Picoides". The International Union for Conservation of Nature (IUCN) has assessed it as a least-concern species. This species was described by Temminck in 1836. The IOC World Bird List recognizes the following subspecies: