HS-LS2-2
Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.
-
Health & Medicine
Cool Jobs: Linking animal health to human health
Scientists who watch out for diseases in wild animals also can play a role in keeping people from getting sick.
By Liz Devitt -
Ecosystems
Algae embedded in sea ice drive the Arctic food web
Scientists traced where zooplankton in the Arctic get their energy from. Many open ocean species rely on algae found in sea ice, which is disappearing.
-
Genetics
GM mosquitoes cut rate of viral disease in Brazil
Adults males carrying the altered gene cannot father young that survive to adulthood. That’s when they suck blood — and can transmit disease.
By Susan Milius -
Fossils
Parasites wormed their way into dino’s gut
Tiny burrows crisscross the stomach of a 77-million-year-old dinosaur fossil. These may be tracks left behind by slimy parasitic worms.
By Meghan Rosen -
Oceans
Seafloor hosts surprising number of deep-sea vents
A new sensor detects changes in seawater chemistry and finds far more ecosystem-supporting seafloor vents than scientists had believed were out there.
-
Animals
Catching ‘Dory’ fish can poison entire coral reef ecosystems
More than half of saltwater-aquarium fish sold in the United States may have been caught in the wild using cyanide, new data show.
-
Environment
Fighting big farm pollution with a tiny plant
Fertilizer runoff can fuel the growth of toxic algae nearby lakes. A teen decided to harness a tiny plant to sop up that fertilizer.
-
Genetics
Why some frogs can survive killer fungal disease
A disease is wiping out amphibian species around the globe. New research shows how some frogs develop immunity.
-
Environment
Uh oh! Baby fish prefer plastic to real food
Given a choice, baby fish will eat plastic microbeads instead of real food. That plastic stunts their growth and makes them easier prey for predators.
-
Animals
The shocking electric eel!
Electric eels are fascinating animals. Their powerful zaps can act like a radar system, trick fish into revealing their location and then freeze their prey’s movements.
By Roberta Kwok -
Health & Medicine
Newly discovered microbe keeps teeth healthy
A newfound bacterium halts the tooth erosion that leads to cavities. This germ or one like it might one day be added to toothpaste or mouthwash.
-
Health & Medicine
Scientists link Zika to nerve disease
The Zika virus is spreading in the Americas. There has also been an uptick in cases of Guillain-Barré syndrome. Scientists think the two are linked.