HS-LS2-8
Evaluate the evidence for the role of group behavior on individual and species' chances to survive and reproduce.
- Brain
Explainer: What is anxiety?
Anxiety is the stress linked to worries about an upcoming event — one that may not even happen. But anxiety can affect the body every bit as much as does the stress provoked by staring down a hungry lion.
- Animals
News Brief: Bees prefer caffeine-spiked nectar
Bees usually alert friends to sources of especially sweet nectar. But a new study finds caffeine is every bit as appealing to them as the sugar is. And that could compromise the quality of their honey.
- Animals
Wolves beat dogs at problem-solving test
When treats are at stake, wolves outperformed dogs at opening a closed container. The dog’s relationship with humans may explain why.
- Animals
Explainer: Male-female flexibility in animals
Some animals behave as if they were the opposite sex; others can even change their sex — and still produce offspring.
- Computing
These young scientists are passionate about tech and math
The 2015 Broadcom MASTERS International delegates show why math and computer skills are key to the success of science-fair projects.
- Animals
Return of the bed bug
Bed bugs have staged a comeback over the past 15 years. The bloodsucking parasites succeeded through a combination of evolution and luck.
- Animals
4 reasons not to ignore signs of bed bugs
Here are important reasons not to ignore signs of bed bugs. Above all, an infestation carries real risks to your health and wellbeing.
- Animals
What’s for dinner? Mom.
Female spiders of one species make the ultimate sacrifice when raising their young: The mothers feed themselves to their children.
- Microbes
News Brief: Ebola’s dead stay infectious for a week
The Ebola virus doesn’t die with its victims — at least not right away. A corpse may host live virus for up to a week after death, a new study finds.
- Health & Medicine
Movies may tempt teens to drink
British 15-year-olds were more likely to binge-drink or have alcohol-related problems if they watched movies with plenty of onscreen drinking.
- Health & Medicine
Chickens spread latest deadly bird flu
A new bird flu virus threatens to spread outside of China. Experts traced the germ to markets where live chickens are sold.
- Plants
Desert plants: The ultimate survivors
Creosote, mesquite and other desert plants rely on different adaptations to thrive, even when no rain falls for an entire year.
