Earth Optimism

Several male jaguars have been spotted in Arizona and New Mexico over the last twenty years, but no evidence of breeding pairs establishing territories beyond Mexico has been seen or reported.

It's Time to Reintroduce Jaguars in the U.S. Southwest, Scientists and Conservation Groups Say

Hunting decimated the big cat’s population in the United States by the mid-20th century

Researchers found that the House Sparrow Passer domesticus had the biggest population out of the total bird species surveys at 1.6 billion individuals.

An Estimated 50 Billion Birds Populate Earth, but Four Species Reign Supreme

House sparrows, European starlings, barn swallows and ring-billed gulls all occupy the billion-bird club with gargantuan population numbers

In the images, the Great Red Spot, Jupiter's superstorm, is seen in both visible and ultraviolet light, but it disappears into the background as a black splotch in the infrared image.

Peer Into Jupiter's Gassy Atmosphere With These Stunning New Photos

The images taken at various wavelengths reveal details about the gas giant's stormy atmosphere

Stress-relief programs that integrate therapy pets can help students relax as they talk and think about their stressors without overwhelming themselves and may be more effective at providing relief than academic approaches to stress management.

For Stressed-Out College Students, Petting Therapy Dogs Has Long-Lasting Benefits

Compared to other experimental groups, undergrads who interacted with pups experienced improved executive functioning skills

Lake sturgeons have a striking appearance with their shark-like tails, five rows of bony plates lining their brownish grey bodies called "scutes", and their whisker-like barbels below their rounded snout.

Biologists Catch Enormous 'Real Life River Monster' in Michigan

The seven-foot-long female lake sturgeon was microchipped and released promptly back into the water

Based on the size of the footballfish and the protruding appendage on the top of its head, state park officials said the fish is female. Female footballfish are the only ones that have the long bioluminescent appendages used to lure other fish toward their mouths.

A Jet-Black, Bioluminescent 'Football Fish' Washed Up on a California Beach

The sea creature typically lives in depths of 3,000 feet and rarely shows up on shore in one piece

Objects such as satellites and rocket debris constantly fall out of orbit and burn up upon re-entry into Earth's atmosphere before they can hit the surface. Still, larger pieces like the Long March 5B rocket can survive re-entry and pose a threat to inhabited areas.

Debris From China's Recent Rocket Launch Plunged Into the Indian Ocean

The rocket's uncontrolled orbit was tracked for days and, upon re-entry, received criticism from NASA

One of the cats from the experiment sits in a Kanisza square, which is four Pac-Man-like circles positioned to create four corners of a square.

Why Cats Love to Sit in Boxes—Even Fake Ones, According to Science

Scientists tested what the Internet has long known to be true: Our feline friends have an "if I fits, I sits" approach to picking the coziest spot

After the researchers combed through more than 27,000 photos of birds from nine accounts across Instagram, they found that it is more than just beauty that attracts ‘likes’. Peculiar or distinctive characteristics that make the bird more unique is what people respond to the most and brings in the most 'likes';

The Eccentric Frogmouth Is the Most Camera-Ready Bird on Instagram

The frogmouth has muted plumage, but its grumpy expression and wide eyes make it enchanting on social media

As the NASA aircraft DC-8 flew into the storm and collected data after each lightning flash, the researchers found that the concentrations of hydroxyl and hydroperoxyl produced by visible lightning and other regions that were electrically charged soared up to thousands of parts per trillion.

Lightning May Wash Pollution Out of the Air With a Chemical Dubbed 'Detergent of the Atmosphere'

The oxidizing chemicals hydroxyl and hydroperoxyl may clean the skies of harmful pollutants by reacting with them

Traditionally, when taxonomists examine a potentially new species of octopus, they dissect them, an approach that is highly invasive and nearly destroys the specimen.

New Species of Dumbo Octopus Identified Using 3-D Imaging Techniques

Techniques such as MRI and CT scans may allow researchers to identify and study rare sea specimens without the need for dissection

From soil samples, researchers found urine droplets and fecal material that belonged to Upper Paleolithic bears that used the Chiquihuite Cave as their shelter and toilet 16,000 years ago.

Using Only Trace Amounts of Poop in Soil Samples, Researchers Sequenced Entire Genomes of Two Ancient Bear Species

Genetic research involving prehistoric animals usually requires fossilized bone or tooth fragments

The disastrous Chernobyl Nuclear Power Plant accident occurred on April 26, 1986, after a flawed reactor design caused two explosions that broke Chernobyl's No. 4 Reactor.

Chernobyl Survivors Do Not Pass Excess Mutations on to Their Children After All

Researchers suggest the results may extend to those exposed to radiation in other nuclear accidents, such as the 2011 Fukushima Daiichi explosion in Japan

Researchers identified that ancestral tarantulas arrived in the Americas 120 million years ago during the Cretaceous period.

How Tarantulas Spread to Every Continent Except Antarctica

A new study explains how the arachnids migrated before and after the Gondwana supercontinent split apart

The annual, juried event is one of the most prestigious craft shows in the United States.

Three Craft Artists Explain How Art and Sustainability Come Together in Their Work

Smithsonian’s prestigious annual craft show opens online April 24; the nation’s top artists gather in the spirit of optimism

Earth Day Is Digital Again, but Don't Let That Get You Down

After researchers reviewed the video footage, they found that the wolf slept for long periods of time but in between naps, also frequented the Ash River to hunt for fish.

Experience a Day in the Life of a Wild Wolf, as Seen in Stunning Collar-Cam Footage

A perfect summer adventure for a wolf in Minnesota seems to be spent fishing and napping

Smoke rises from a wildfire in the summer of 2019 near Talkeetna, Alaska.

New-Growth Alaskan Forests May Store More Carbon After Wildfires

Researchers find forests are regrowing with more deciduous trees, which are more resistant to burning and may eventually store 160 percent more carbon

The female sawfish (pictured) is 16 feet long and estimated to weigh between 800 and 1,000 pounds. It's the longest smalltooth sawfish ever measured by scientists.

Record-Breaking 16-Foot-Long Sawfish Washes Ashore in the Florida Keys

In a rare occurrence, a second 12-foot-long juvenile sawfish was found dead on a different beach in the state during the same week

Previous research has shown that a gorilla's larger body size is linked to reproductive success and social rank. The chest-beating could be another way for the gorillas to convey their size to others and, in turn, avoid fights that could result in serious injury or death.

Gorillas Beat Their Chests to Communicate With Each Other

The larger male apes have lower frequencies in their pounds and may use chest-beating to signal their social status, strength, and size to others

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