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Smithsonian Tropical Research Institute

Ants in the spotlight

Ants in the Spotlight: The Hidden Gaps in Neotropical Ant Behavior Research

A recent study from the Smithsonian Tropical Research Institute (STRI) reveals that, despite their outsized ecological impact, the diversity of ants in the American tropics and their behavior remain understudied

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Mutualism Under Pressure: New Research in Panama Shows a Plant's Ability to Keep Its Defender Ants Happy

Scientists discovered that swollen-thorn acacias invested more in ant rewards during a drought, suggesting that mutualistic interactions play a crucial role in the plant's survival, even during climate stress

Adult Túngara frog

Frog Tadpoles That Grew Up In The City Developed Faster But Ended Up Being Smaller

Have you ever wondered how city life affects animals like frogs? A new study reveals that urban Túngara frog tadpoles develop faster —but end up being smaller — than tadpoles from forests, probably resulting in smaller adults. This might be an adaptation to warmer urban puddles with fewer predators or to constantly changing environmental conditions in the city

Capuchin monkeys have been monkey-napping baby howler monkeys

Monkey-Nappers! A Group of Capuchin Monkeys Caught on Camera With Abducted Baby Howler Monkeys

Observations of Coiba's tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior?

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Bat Salad: First Record of Bats Eating Entire Leaves and Not Spitting Them Out

Bats are known to chew and spit out leaves, like humans chew and spit out tobacco or coca, but this is the first continuous recording of a bat eating entire leaves

Spix's disk-winged bats inside their leaf tube

Listen Up! Hungry Bats Emit Food Calls to Family and Friends

Spix’s disc-winged bats shrieked when they were first shown mealworms, a new food for them. Were they alarmed, or were they communicating their excitement to their fellow bats?

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'Scientists for Scientists' Wartime Grant Brings Ukrainian Bat Biologists to Panama

Over the last two years, staff at the Ukrainian Bat Rehabilitation Center have worked to save bats from the dangers of the Russian full-scale invasion. Now, they join researchers at the Smithsonian Tropical Research Institute to study bat behavior in Panama

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Smarter Foragers Do Not Forage Smarter

Why do primates have big brains? In the Panamanian rainforest, scientists pitted large-brained primates against smaller-brained mammals to find out who was the smartest forager.

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Indigenous Marine Scientist Studies Fish Feeding Evolution in Panama

Through advanced isotopic analyses, Rodnyel Arosemena seeks to understand how fish in the Caribbean and the Pacific that had a common ancestor take advantage of the resources of their different environments today.

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Red Flags: I'm Not the Bug for You

Recent research conducted in Panama has revealed that the waving behavior exhibited by matador bugs, with their attractive hind-leg flags, are neither mating displays nor distraction tactics against predators, as previously thought.

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Following the Swarm: Making a Documentary Short Film In Panama’s Tropical Forest

At the Smithsonian Tropical Research Institute, researchers track swarms of carnivorous army ants and the birds that follow them. A new documentary reveals a glimpse of life, and research, in the Neotropics

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Gamboa Bat Nights: Bilingual Noches de Murciélagos along the Panama Canal

The first Sunday of every month, you can join researchers from the Smithsonian Bat Lab to get a close-up look at Panama’s bats

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Barro Colorado Island, One Hundred Years of Science and Discoveries

Five Panamanian scientists share a glance at the experience of working in the tropical biologist’s dream, Barro Colorado Island

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Have Antillean Manatees Crossed the Panama Canal into the Pacific?

Over half a century ago, a group of manatees from Panama's Caribbean region of Bocas del Toro was flown into the Panama Canal to control the abundance of aquatic plants in its water reservoir and prevent the proliferation of disease-transmitting mosquitoes. Where are they now?

Bat lands on a speaker to collect a baitfish reward

Does This Ring a Bell? Wild Bats Can Remember Sounds for Years

Researcher May Dixon discovered that frog-eating bats could recognize ringtones indicating a food reward up to four years later

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A Yellow Submarine Explores the Depths of the Panamanian Pacific

Six scientists from Panama, Costa Rica, Colombia and Ecuador spent two weeks exploring the recently expanded Cordillera de Coiba marine protected area, an unknown region to science. This is what they saw.

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Smelly Ocelot Habitats May Scare Off Agoutis

These rodents seem less likely to snack in areas where ferocious felines have peed

As part of her fieldwork, Fernandez habituated the bats to her presence near their day-roosts, obtaining observations of their natural behaviors and recording their vocalizations in a completely undisturbed environment during months. (Ana Endara)

Similar to Human Babies, This Bat Species Learns to Communicate Through Babbling and Vocal Imitation

Long-term monitoring of the bat species Saccopteryx bilineata in their natural setting revealed that pups display babbling behavior strikingly similar to that of human infants

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