Watch this baby penguin take its first swim at Chicago aquarium
The aquarium's newest arrival weighs a little over 4 pounds.
Billions of snow crab deaths off Alaska coast linked to marine heatwave
Dropping to a historical low in 2021, and after historical highs three years earlier, the disappearance of snow crabs is one of the largest losses of marine life worldwide.
Journey of a lifetime: 3-year-old Texas girl becomes youngest person to visit all 63 US national parks
Journey Castillo’s parents describe her as active, fearless and outgoing, and say there’s nothing better than seeing her explore the wonders that nature has to offer.
Ohio zoo employee taken to hospital after bite from rattlesnake
The Cincinnati Fire Department said that law enforcement was called to the local zoo after a woman was reported being bitten by an eastern diamondback rattlesnake.
These 21 species have been declared extinct, the U.S. Fish and Wildlife Service says
The species join a list of 650 others that are extinct in the U.S.
Nikon Small World photo contest shows life under the microscope
Have you ever wondered what lighting a matchbox looks like under a microscope? The 2023 Nikon Small World microphotography winners are in.
Some female frogs play dead to avoid unwanted male advances, study says
Female frogs may take extreme measures to avoid the pile-up that frequently happens during “explosive" mating in the spring, according to the researchers.
Please don't paint 'pet' on wild deer, Missouri officials warn
Authorities say deer should never be considered pets – and they shouldn’t be moved from their natural habitat because of disease.
Fat Bear Week 2023: This absolute unit blew the competition out of the water
Fat Bear Week celebrates Katmai's brown bear population's resilience, adaptability, and strength as the animals prepare to hibernate, according to the National Park Service.
Bear euthanized after charging 2 boys in Colorado, 1 cub survives capture
In a recent incident in Colorado Springs, a bear charged at two boys aged 12 and 13, prompting wildlife officials to respond.
Watch: Bodycam footage shows deputies rescuing elk tangled in tree swing
When the deputies arrived at the scene, they saw the bull elk, or male elk, frantically running back and forth behind the tree where the swing was attached.
Idaho elk hunter shoots, kills charging grizzly bear in 'surprise encounter': officials
Idaho wildlife officials determined hunter killed grizzly bear in self-defense.
Watch: Moose enjoy festive fall dip in Colorado lake amid stunning autumn foliage
In early October near Steamboat Springs, Colorado, a heartwarming scene unfolded as a group of moose was discovered frolicking in a picturesque lake, surrounded by vibrant fall foliage.
Thousands of birds dead in Utah after suspected avian botulism outbreak
Thousands of birds in northern Utah have died due to a recent outbreak of wildlife officials believe is avian botulism.
Well-known kite surfer was victim in apparent shark attack off Marin County coast
A swimmer who remains missing after an apparent shark attack on the Marin County coast over the weekend was identified by friends.
Tarantula mating season begins as males are led to their death
Tarantulas typically remain in the burrows throughout most of the year, and only come out at night. But come mating season, adult male tarantulas throw caution to the wind for the sake of finding a female. The annual migration happens just before Halloween, from late September through early October in the Southwest.
Fat Bear Week begins as world celebrates champion of chonk in Alaska
This portliest time of the year is an annual celebration of the Brooks River brown bears and how they utilize their healthy and abundant ecosystem to pack on the pounds before winter hibernation.
North Carolina angler's colorful puddingwife catch may set world record in saltwater fishing
Connor Stone, 30, is on the verge of potentially setting a world record in the world of saltwater fishing. In a remarkable catch made back in July, Stone reeled in a vibrant and exotic puddingwife fish.
Grizzly bear attack in Banff National Park leaves couple, dog dead
Parks Canada officials say a grizzly bear in Alberta was euthanized after displaying "aggressive behavior."
Nightly Roundup: Family searches for missing child; a 'nonsoon summer' for Phoenix
From a dry monsoon season to a child who went missing during a family trip, here's a look at some of our top stories.