Navalny was rushed to hospital on Sunday after showing symptoms of an allergic reaction, which his team say was caused by a poisoning attempt.
"The birds weren't able to fly and were lying on the ground wailing in pain. Some were bleeding out of their mouth," said animal welfare charity member Sarah King, one of those who arrived at the scene.
It is suspected that the doctor injected 24 patients aged from 8 to 80, between 2008 and 2016.
A representative from a toad removal company described the situation as a "toad vortex."
A former Lehigh University student from China who was already facing ethnic intimidation charges against a black dormitory roommate is now accused of attempted homicide by trying to slowly but surely poison him.
Some 600,000 children were killed by air pollution in 2016.
The county failed to connect 173 of 204 children to a Genesee County treatment program for health remediation.
Strange tales from the lingerie model behind the U.K.'s latest chemical weapons scare.
"The reptiles were in canisters, packed in bags, carried in hand luggage," environmental authorities said, after discovering the snakes when the plane landed.
Investigators are taking another look at the shooting, which was initially deemed accidental.
Moscow has cast doubt over the relevance of the footage showing two Russian nationals visit the U.K., travel to Salisbury and leave during the attack.
Kansas found contaminated groundwater near Wichita, but did not investigate whether it had spread to private wells for six years.
Mushroom consumption can cause vomiting, diarrhea, vital organ damage or death.
Scientists in Sarasota developed a new machine called an Ozone Treatment System that can remove toxins from water.
The Russian government previously accused British intelligence officials of carrying out the Skripal poisoning as a way to stir up anti-Moscow sentiment.
Reports suggest the 44-year-old and her partner handled a contaminated item.
The man and woman who fell ill in Amesbury were exposed to the same nerve agent that hospitalized a former Russian agent and his daughter.
The man was caught on CCTV sprinkling a white powder onto a colleague's sandwiches.
The ex-Russian spy and his daughter were hit with an attack that used 50-100 grams of Novichok, the head of the OPCW has said.
Vladimir Uglev identified the poison that hospitalized former double agent Sergei Skripal as Novichok.