“Unnatural” Selection
Humans driveevolutionof conch size
March 21, 2014
Thousands of years of hunting has turned a substantial meal into a bite-sized snack.
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Displaying 10 of 62 results.
Frog Toxins For Medicine
Saving frogs couldhelp save lives
January 23, 2017
As bacterial infections become more resistant to antibiotics, the toxins on the skin of frogs presents huge opportunity for new drug discovery.
Profile: Stephen Hubbell
Do pests keep rare tree species from becoming common?
July 15, 2012
A five-year, $2-million grant will help test the hypothesis that rare trees are more susceptible to pathogens than common trees on Barro Colorado Island.
Window to the past
How long has Central America been so biologically diverse?
September 28, 2017
20-million-year-old fossil seeds shed light on origins of plant biodiversity in Panama.
Declining reefs
What were Caribbean coral reefs like before humans?
September 29, 2017
Fossil reefs from around the Caribbean show how biologically rich these ecosystems once were — and provide goalposts for conservationists hoping to restore them.
Flowers from Darkness
“Tropical forests are the result of an accident of history.” - Carlos Jaramillo.
April 23, 2018
About 66 million years ago, a radical change on the Earth filled tropical forests with flowers. A new catalog of fossil pollen grains may hold an explanation.
Redefining Pristine
Modern marine oxygen-deficiency research inspires search for fossil record
May 11, 2018
Smithsonian scientists who documented massive mortality of corals and reef organisms meticulously studied one of the apparent causes: oxygen deficiency. A Smithsonian paleobiologist asks if the recent fossil record shows signs of similar hypoxia events.
Not Resilient
Old Species Learn New Tricks…Very Slowly
August 23, 2018
Perhaps old species, like some older people, gradually lose their ability to deal with changes in their environment. Aaron O’Dea and colleagues show that when the Caribbean was cut off from the Pacific by the rise of the Panama land bridge, evolutionarily old species took longer to expand into new habitats than evolutionarily younger species did.
Dermal Disruption
Amphibian skin bacteria is more diverse in cold and variable environments according to global survey
February 27, 2019
Frog researchers swabbed 205 amphibian species to better understand the ecology of their skin bacteria. Which environmental factors influence the makeup of their microbiomes?
Hitch-hiking barnacles
Deep time tracking devices
April 02, 2019
Long-distance migrations are common for large whales, but when in their evolutionary past did they begin to migrate and why? Fossil whale barnacles may have the answers
