Mammal– category –

Among the more than 200 known species of anthropoid primates, there is only one that has adopted a truly nocturnal lifestyle: the night monkey, also known as the "Owl Monkey" or "Douroucouli." Spix’s night monkey(Aotus vociferans) from E...

Geoffroy's tamarin (Saguinus geoffroyi), is a small primate with a distinctive appearance and highly social nature, inhabiting the lush tropical forests of Panama and Colombia. With its striking black-and-white fur, reddish-brown nape, a...

Deep in the Ecuadorian Amazon live some of the world’s smallest and most fascinating primates. During my month-long stay in the region, I was lucky enough to observe four incredible species—three types of tamarins and one marmoset. In th...

the Mantled Howler Monkey (scientific name: Alouatta palliata) A low, resonant growl echoes through the jungle. If you visit the tropical rainforests of Central and South America, you may be surprised by a deep, rumbling sound coming fro...

This is a record of my experience searching for the Japanese serow (Capricornis crispus) in Tokyo. I hope this will serve as a helpful guide for those who wish to find one themselves. Japanese serow (Capricornis crispus) Basic Informatio...