Jaegers (three species of Stercorarius) nest on the tundra, where both sexes share in incubating the two eggs. Some species have light and dark phases. They are pelagic and solitary after breeding.
WARNING: MAY BE HABIT FORMING. Pentothal (Thiopental Sodium for Injection, USP) is a thiobarbiturate, the sulfur analogue of sodium pentobarbital. The drug is prepared as a sterile powder and after reconstitution with an appropriate diluent is administered by the intravenous route.
The use of this toxin as a biochemical probe has elucidated two distinct types of voltage-gated sodium channels present in humans: the tetrodotoxin-sensitive voltage-gated sodium channel (TTX-s Na + channel) and the tetrodotoxin-resistant voltage-gated sodium channel (TTX-r Na + channel).etrodotoxin binds to TTX-s Na + channels with a binding affinity of 5-15 nM, while the TTX-r Na + channels bind TTX with low micromolar affinity.