"Why did thousands of cattle all die in a heat wave?" Greene tweeted. "Usually just the old, sick, or weak die in stressful conditions, not the whole herd."
The footage, shot in Grand Teton National Park, Wyoming, is from an episode of the Disney+ series "America the Beautiful."
Two killer whales have been killing Great White sharks off the coast of South Africa, causing the sharks to avoid their regular territory.
The two-headed southern brown egg-eater snake has a condition called polycephaly.
The two-inch-long insects damaged crops on 10 million acres of Oregon farmland last year.
The pharmacist at one Missouri Walgreens branch refused to give the woman the medication she needed to safely have her miscarriage.
Eyewitnesses reported the shark attacking a swimmer at 14.09 p.m. local time. Just one minute later, the shark was caught on film.
Bite marks on the fossilized skulls of ancient sperm whales have shown that ancestral sharks had a preference for feeding on their large, fatty nasal organs.
The killer whales were spotted with a baby pilot whale, despite there being no adult pilot whales anywhere close by.
Daisies, clovers and other herbaceous flowering plants are essential in helping male deer grow antlers, making up 70 percent of their diet in spring and summer.
Professional fisherman Jason Moyce shared a photo of the beast on social media asking for help identifying it.
Temperatures have soared, with many states experiencing droughts so severe that scientists predict that wildfire season may soon last all year.
"They were intertwined, wrestling, moving in the canopy at speed. I was in disbelief!" said snake rescuer Nick Evans.
Maddie Freese spotted the huge fish in the shallows, dove under the water, and grabbed it by the tail.
"The detection capacity for pythons is very low," said Everglades Foundation Chief Science Officer Steve Davis.
Viruses that cause sickness in humans can attach to microplastics, remaining infectious for much longer than they would otherwise.
Cymothoa exigua, otherwise known as the tongue-eating louse, were spotted in the mouths of a shipment of seabream arriving at a port in the U.K.
It took two hours to wrestle the 10 foot long sturgeon into the boat on Fraser River, British Columbia.
The bear was foraging for leftover food in the car when the door shut behind it. Images show its how it tried to escape before dying from heatstroke.
The agency is encouraging take-up of the MenACWY vaccine amid "one of the worst outbreaks of meningococcal disease among gay and bisexual men in U.S. history."
A huge black bear in Voyageurs National Park, northern Minnesota, has a surprisingly big belly for the time of year.
The viral video shows the huge ray leaping from the water, scaring away its companion with a big splash.
Monkeypox, usually seen in Central and West Africa, is currently spreading across non-endemic countries, including Europe and North America.
The massive alligator snapping turtle is a protected species in Texas, so it was released back into the lake.
The giant mammal was last seen over two years ago, stirring concerns for his wellbeing and safety.
Footage from CCTV shows the coyote grabbing the terrier by the neck and dragging her around the yard.
An Austrian man in his fifties is thought to have contracted an antibiotic-resistant strain of gonorrhea from a woman in Cambodia.
The head of a Hercules statue has been found in the legendary 2,000-year-old Antikythera shipwreck.
A family of three in Australia went to the hospital after experiencing severe muscle pains, 10 hours after eating a queen snapper fish.