Vipera berus sachalinensis (Sakhalin Island adder a.k.a. Sakhalin adder ) is a venomous viper subspecies endemic to Asia.
Precocial species are those in which the young are relatively mature and mobile from the moment of birth or hatching. Precocial species are normall...
Ovoviviparity, ovovivipary, ovivipary, or aplacental viviparity is a term used as a "bridging" form of reproduction between egg-laying oviparous an...
Venom is a type of poison, especially one secreted by an animal. It is delivered in a bite, sting, or similar action. Venom has evolved in terrestr...
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starts withIt is found in the Russian Far East (Amur), China (Jilin), North Korea, and on Sakhalin Island.
According to Schwarz (1936), the type locality is "Sachalin" (= Sakhalin Island, Russia).
