Redefining sexual dimorphism
Is odor the secret to bats’ sex appeal?
January 29, 2021
A literature review revealed that odor-producing glands and tissues in bats may play a prominent role in mating behavior
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Displaying 30 of 34 results.
Risky Business
Courtship movements put katydids in danger
April 30, 2020
Females may also be prone to predation as they move toward a mating call
Critical conservation sites
The highlands of Panama, Central Panama and Darien identified among the 50 Threatened Amphibian Landscapes worldwide
October 19, 2023
A groundbreaking study assessed the extinction risk of more than 8,000 amphibian species worldwide and concluded that two out of five amphibians are threatened.
Forest unearthed
An extinct mangrove forest discovered on Panama’s Barro Colorado Island
January 30, 2024
A volcanic eruption 22 million years ago triggered a sediment flow that preserved a mangrove forest around what is now Barro Colorado Island, providing a better glimpse of the vegetation that existed in a highly changing area.
Colorful warning
Red flags: I’m not the bug for you!
March 27, 2024
The matador bugs' vibrant flags are neither a dating display nor a distraction tactic, they’re part of an elaborate defense strategy, according to a new study in Gamboa
Evolving diets
Indigenous marine biologist deciphers the evolution of feeding strategies of sister fish species on both sides of the isthmus of Panama
April 19, 2024
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.
Red-eyed treefrogs
Red-eyed treefrog eggs hatch a plan to escape warming temperatures
July 12, 2024
A new study from the Smithsonian Tropical Research Institute (STRI) shows that red-eyed treefrog embryos hatch early when exposed to high ammonia levels — an environmental cue that it’s too hot and dry for the eggs to survive.
Leatherback migrations
Leatherback sea turtle behavior: stay near home or set off across the ocean?
October 30, 2024
A new study finds that leatherback sea turtles tend to migrate rather than forage when chlorophyll, primary productivity, and sea surface temperature levels are lower.
Frog defenders
Bezos Earth Fund Gives $2 Million Grant To Launch Groundbreaking Amphibian Conservation Project Across Latin America
March 20, 2025
A grant from the Bezos Earth Fund to help save 25 frog species through conservation, rewilding, and disease prevention efforts.
Scientist
Roberto Ibañez
My primary research focus is on Panamanian frogs that are likely extinct in the wild due to a fungal infection but are kept alive in captive breeding programs in Panama and the United States. Our lab has collected founding individuals for these amphibian colonies, devised methods to sustainably...
