Hillary Hughes, Panamanian actress, visits the Smithsonian Tropical Research Institute's Agua Salud Project during the filming of videos in Spanish and English to share hope for the success of tropical forest reforestation informed by the largest experiment of its kind in the tropics.

Smithsonian Voices

Watch These Two Videos and You Will Feel More Hopeful About the Future of Tropical Forests

Agua Salud’s new bilingual videos share the results of tropical reforestation experiments at the Smithsonian Tropical Research Institute in Panama

A new study suggests the lush, hyper-diverse rainforests of South America were shaped by the asteroid impact that killed off the dinosaurs.

How the Dinosaur-Killing Asteroid Spurred the Evolution of the Modern Rainforest

New evidence from fossil plants shows today’s South American rainforests arose in the wake of Earth’s fifth mass extinction

Illustration from the graphic novel 'Martina and the Bridge of Time' by Aaron O'Dea and Ian Cooke Tapia.

Smithsonian Voices

Time Travel Into Panama’s Deep History With This Richly Illustrated New Graphic Novel

‘Martina and the Bridge of Time’ tells the story of the Isthmus’ formation and evolution through the adventures of a young Panamanian girl

Foster mother, BD, feeds her adopted vampire bat pup in a captive bat colony at the Smithsonian Tropical Research Institute in Gamboa, Panama.

Smithsonian Voices

Baby Vampire Bat Adopted by Mom’s Best Friend

The strong relationship formed between two female adult vampire bats may have motivated one of the bats to adopt the other’s baby

Bryophytes in the tropics are threatened due to lack of information and research.

Smithsonian Voices

Step Into the Mossy World Where Tiny Plants Play an Outsized Role in the Environment

Bryophytes are an important part of our environment, but in the tropics, there’s still much to learn about them

A male wrinkle-faced bat (Centurio senex) seen dangling from his perch. Beneath his chin is a furry skin fold that he pulls up to cover the lower half of the face like a mask during courtship.

New Research

These Bats Mask Up to Woo Mates

Male wrinkle-faced bats use a furry neck flap to cover their faces while serenading the opposite sex in never-before-seen behavior

A new study from scientists at the Smithsonian Tropical Research Center analyzed about 35,000 bone and shell fragments from the Maya city of Ceibal.

Bones Tell the Tale of a Maya Settlement

A new study tracks how the ancient civilization used animals for food, ritual purposes and even as curiosities

The face of a sweat bee (Megalopta amoena) that is half female (viewer's left, bee's right) and half male (viewer's right, bee's left)

Meet the Bee With a Body That’s Half Male, Half Female

So-called gynandromorphs are rare, but they can teach us a lot about development and evolution

Vampire bats, a highly social species, will continue interacting with each other even when they're feeling sick.

When Illness Strikes, Vampire Bat Moms Will Still Socialize With Their Kids

Studying how bats behave when they’re feeling ill could help researchers better understand how pathogens move through close-knit populations

Bees from the nest structures: A) Head, side, top and bottom views of bees found inside the cells, B) drawing of Eufriesea surinamensis and photograph of the head of a modern bee taken by David Roubik

Panama

150-Year-Old Mummified Bee Nests Found in Panama City Cathedral

The nests, covered in gold leaf and paint, act as a time capsule for the surrounding environment circa 1870

Coyotes are about to enter South America, a move that could soon make the species, native to North America, one of the most widespread carnivores in the western hemisphere.

Coyotes Poised to Infiltrate South America

The crab-eating fox and the coyote may soon swap territories, initiating the first American cross-continental exchange in more than three million years

Heliconius charithonia is one of the species of butterflies whose wing patterns scientists scrutinized to better understand the evolutionary process. This butterfly is wild-type; the genetically edited H. charithonia wings have wider swathes of yellow.

What Butterflies’ Colorful Wing Patterns Can Teach Us About Evolution

Smithsonian scientists used genetically-engineered butterflies to learn that evolution can take a different path to achieve the same thing

By collecting images and GPS data from citizen divers, scientists can get a better sense of the health of the entire Great Barrier Reef.

Massive Citizen Science Effort Seeks to Survey the Entire Great Barrier Reef

Only about 1,000 of 3,000 individual reefs have been documented, but the Great Reef Census hopes to fill in the gaps

Three green sea turtles, Chelonia mydas, on a coral reef, Heron Island, Great Barrier Reef, Australia.

Coral Reefs Face the Dual Threats of Ocean Acidification and Erosion

As coral tissues die off, the exposed calcified skeleton becomes vulnerable to organisms that eat away at the dying reefs

This bat gleans insects from leaves. A team of researchers discovered that by approaching a leaf at an oblique angle, it can use its echolocation system to detect stationary insects in the dark.

Bats Use Leaves as Mirrors to Locate and Catch Their Prey

The latest discovery in the arms race between bats and insects reveals that even silent, motionless dragonflies aren’t safe

Rake marks on humpback flukes may be literal tallies of battles won—like the scars seen on the upper right fluke fin here—but little is known about the losses.

New Research

With Humans Out of the Way, Humpbacks Are Flourishing—But So Are Orcas

Researchers are just now beginning to understand what happens when one whale species attacks another

Mosquito researcher Kelly Bennett, turkey baster in hand, is on the prowl, collecting specimens for study

Hunting Deadly Mosquitoes in Panama

The latest podcast “Sidedoor” travels with Smithsonian experts on the trail of the buzzing beasts known as the Aedes

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Massive Animal Tracking Database Collects Its One-Billionth Creature Location

Guzmán and his team were only able to pinpoint the whale shark's whereabouts when it rose to the surface to feed.

What the Longest Known Whale Shark Migration Ever Tells Us About Conservation

Researchers in Panama tracked a specimen via satellite over an unprecedented 12,516 miles

Once common along highland streams in Costa Rica and western Panama, the variable harlequin frog, Atelopus varius, is now endangered throughout its range, thanks in large part to a disease caused by the amphibian chytrid fungus.

These Captive-Bred Frogs Are Facing Predators and the Chytrid Fungus to Make It in the Wild

Scientists in Panama release 500 harlequin frogs, some wearing transmitters, in a first attempt to reintroduce the endangered species

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