Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a rare and lethal toxin found in the skin of poison dart frogs, five European countries s ...

The tragedy of Romeo began long before the frog found fame as the last of his kind. Starting in the 1970s, scientists started noticing something troubling in the amphibian world: the decline and, in ...

Late Russian opposition leader Alexey Navalny's mom says a European assessment that he was poisoned in prison "confirms what ...

There is no innocent explanation for the presence of the toxin detected after Navalny's death, European allies say, noting ...

The allegation feeds into a long history of high-profile poisonings in Russia, many targeting foes of President Vladimir Putin.

Poison dart frogs have fascinated researchers. Now their toxin has allegedly been linked to the death of Russian opposition leader Alexei Navalny.

Toxin found in poison dart frogs probably killed Alexei Navalny in a Russian prison, five countries announced on the two-year anniversary of his death.

Dart frogs in captivity do not produce the toxin, and it is not found naturally in Russia, five European governments said.

Russian opposition leader Alexei Navalny was poisoned by the Kremlin with a lethal toxin derived from the skin of poison dart ...

Five European countries say tests confirm late Russian opposition leader Alexei Navalny was poisoned with a lethal toxin found in poison frogs, and they blame the Kremlin.

Some classrooms have a class pet. Moniteau Jr./Sr. High School has about 25 of them. And the pets raised by students in ...

In this video I walk you through my giant office and reptile room and introduce every single one of my pets. From my red monster bearded dragon and ball python to dumpy frogs, horned frogs, a hognose, ...