Animals
Sleeping glass frogs go into stealth mode by hiding red blood cells
Glass frogs snoozing among leaves blend in by hiding almost all their red blood cells in their liver.
By Susan Milius
HS-LS4-3
Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait.
More Stories in HS-LS4-3
- Animals
How can Baby Yoda be 50 years old?
Animals with wings, big bodies or other protections from predators are more likely to evolve long lifespans.
- Animals
Some young fruit flies’ eyeballs literally pop out of their heads
The first published photo shoot of developing Pelmatops flies shows how their eyes rise on gangly stalks in the first hour of adulthood.
- Health & Medicine
Should we use a genetic weapon against mosquitoes carrying malaria?
One gene drive to eliminate malaria seems to work in the lab. Now it’s time to ask local people if they want it released in the wild.
- Animals
Living mysteries: This critter has 38 times more DNA than you do
The genomes of salamanders are bloated with genetic “parasites.” That extra DNA slows down their lives and strands them in perpetual childhood.
- Animals
Analyze This: Bulky plesiosaurs may not have been bad swimmers after all
Long-necked plesiosaurs were thought to be slow swimmers. But new research suggests the animals’ large size helped them overcome water resistance.
- Animals
How boa constrictors squeeze their prey without strangling themselves
Tracking boas’ ribs in X-ray videos revealed the snakes’ squeezing secrets. It’s the latest Wild Things cartoon from Science News Explores.
- Fossils
Ancient ‘ManBearPig’ mammal lived fast — and died young
Developing in the womb for a while — but being born ready to take on the world — may have helped post-dinosaur mammals rise to dominance.
- Animals
Butterfly ‘tails’ might be part of an escape tactic
Slender, tail-like extensions on their wings may help some butterflies survive attacks by hungry predators.
- Tech
Virtual critters evolve bodies that help them learn
A combination of evolution and learning may lead to more intelligent and agile robots.
