8,300 results
8,300 results for: Fish
- Animals
Bite This: Borrowed toad toxins save snake’s neck
An Asian snake gets toxins by salvaging them from the poisonous toads it eats.
- Ecosystems
Warming Sign? Larger dead zones form off Oregon coast
Unprecedented recent changes in the yearly pattern of ocean currents off North America's West Coast have wreaked havoc on aquatic ecosystems there, another possible symptom of Earth's warming climate.
- Earth
Hibernation concentrates chemicals
Some pollutants accumulate in grizzlies during the bears' hibernation.
- Animals
It’s a Girl: Atlantic mystery squid undergoes scrutiny
To scientists' surprise, a huge, deep-sea, gelatinous squid formerly reported only in the Pacific Ocean has turned up half a world away.
- Earth
New solutions for unused drugs
Pharmacists and federal scientists have launched a program to discourage consumers from flushing unused prescription drugs down the toilet.
- Animals
Virgin Birth: Shark has daughter without a dad
DNA testing of two sharks confirms an instance of reproduction without mating, adding a fifth major vertebrate lineage to those known for occasional virgin births.
- Earth
Fish Free Fall: Hormone leads to population decline
Trace amounts of the synthetic estrogen used in birth control pills can cause a fish population to collapse.
- Chemistry
In a Fix: Agricultural chemicals disturb a natural relationship
Several pesticides can disrupt a partnership that enables certain plants to take up nitrogen by enlisting the help of bacteria.
- Animals
Clownfish noisemaker is new to science
Clownfish make "pop-pop-pop" noises at each other by clacking their teeth together in a novel way.
- Animals
Profiles in Courtship: Flirting male fish show their best sides
Courting male guppies that sport a tad more orange on one side of their bodies than on the other tend to flash that brighter side at females.
- Physics
Dropping the Ball: Air pressure helps objects sink into sand
A ball plunges deeper into sand under atmospheric pressure than under a vacuum, because the presence of air allows sand to flow like a liquid.
- Ecosystems
Sea Change: People have affected what penguins eat
Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem.
