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Visualizing New Worlds
Image of the Week

Frederic Edwin Church’s oil painting, “The Heart of the Andes” caused quite a stir when it was unveiled in New York on April, 27, 1859
Universal Health Coverage
Image of the Week

Close-up of cells in a fruit fly eye at the pupal stage stained with antibodies to the Notch protein.
Polychromatic EM
Image of the Week

A new technique for labeling proteins and other molecules allows them to be clearly visualized and localized in cells in color using electron microscopy.
Tracking Genetically Modified Mosquitoes
Activity

Genetically modified mosquitoes have been used to reduce mosquito populations and the diseases they spread. But how can we tell if the method works? In this activity, students analyze data from a field experiment.
Microbial Community Response to an Oil Spill
Data Point

Researchers monitored the succession of the microbial community in the Gulf of Mexico using data from before, during, and after the Deepwater Horizon oil spill.
Population Dynamics
Click & Learn

Explore the exponential and the logistic growth mathematical models that describe how population changes with time.
Portrait of a Howler
Image of the Week

Groups of black howler monkeys (Alouatta caraya) “howl” to each other in the Amazon rainforest during the evening and early morning hours in order to maintain neighborly distances.
Benefits of Schools
Image of the Week

Being in a school affords young barracuda several advantages over the solitary life.
Developing an Explanation for Mouse Fur Color
Activity

Students collect and analyze evidence for each of the major conditions for evolution by natural selection to develop an explanation for how populations change over time.
Firefly Pyrotechnics
Image of the Week

Most firefly species employ characteristic patterns of bioluminescent flashes to elicit responses from potential mates.
Asteroid Impact?
Image of the Week

A living foraminifer, Orbulina universa, in the act of shortening its spines in preparation for gametogenesis.
Using Wolbachia to Suppress Mosquito Fertility
Data Point

In this study, researchers tested whether releasing Wolbachia-infected male Aedes albopictus (Asian tiger mosquitoes) would suppress populations of this mosquito species in their study area.
How Lizards Find Their Way Home
Scientists at Work

(8 min 33 sec) When Dr. Manuel Leal removed lizards from an area in the forest, he noticed an interesting phenomenon: all the lizards seemed to be back the next day. Watch as he sets up an experiment to study how these lizards navigate home. Also available in Spanish.
Dad Feathers
Image of the Week

The male peafowl, or peacock, invests a lot in his appearance.
Seed Dispersal and Habitat Fragmentation
Scientists at Work

(8 min 3 sec) Watch researchers follow brown spider monkeys in a tropical forest of Colombia to determine which plant seeds they are dispersing. Seed dispersers are critical to the forest’s ability to grow and regenerate.
Root Movement
Image of the Week

Root tips constantly search the soil for water and nutrients using the power of cell division and elongation.
WildCam Darién
Click & Learn

Researchers in Darién and Soberanía National Parks use remote trail cameras to study jaguars and their prey. You can contribute to this important research through WildCam Darién, an online citizen science platform.
Counting the Rings
Image of the Week

An otolith from a lanternfish (Gymnoscopelus nicholsi) is used to estimate the fish’s age and growth rate.
Sleep Clears β-amyloid from the Brain
Data Point

The researchers in this study tested whether the rate of Aβ removal is higher during sleep using mice as model organisms.
Dragon Tale
Image of the Week

A pangolin rescued from poachers near Gorongosa National Park, Mozambique.