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1 day ago · Elephant. Elephants are the largest living land animals. Three living species are currently recognised: the African bush elephant ( Loxodonta africana ), the African forest elephant ( L. cyclotis ), and the Asian elephant ( Elephas maximus ). They are the only surviving members of the family Elephantidae and the order Proboscidea; extinct ...
1 day ago · Tigris regalis Gray, 1867. The tiger ( Panthera tigris) is the largest living cat species and a member of the genus Panthera native to Asia. It has a powerful, muscular body with a large head and paws, a long tail, and orange fur with black, mostly vertical stripes.
2 hours ago · 2023年12月5日，美国德克萨斯大学休斯顿健康科学中心麦戈文医学院Qingchun Tong和德克萨斯儿童医院Jan和Dan Duncan神经学研究所的Benjamin R. Arenkiel研究团队合作在Neuron杂志上发表名为“An excitatory projection from the basal forebrain to the ventral tegmental area that underlies anorexia-like ...
