Search Results for: Vertebrates
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1,562 results
1,562 results for: Vertebrates
- Animals
Frustrated fish get feisty
Smaller rainbow trout become more aggressive towards bigger fish when they don’t their usual treats.
- Life
Genes gives clues to outcome of species interbreeding
Genetics provides clues to why hybrid river fish formed a subspecies but insects formed a new species.
- Life
Domesticated animals’ juvenile appearance tied to embryonic cells
Mild defects in embryonic cells could explain physical similarities along with tameness across domesticated species.
- Humans
Letters from the March 1, 2008, issue of Science News
Big evolvers Regarding “Whales Drink Sounds: Hearing may use an ancient path” (SN: 2/9/08, p. 84), I have heard that whales evolved millions of years ago into their present form, including their very large brains. We humans must be relatively recent in terms of our brain structures. Are there data concerning evolutionary development in whales? […]
- Life
Rivalry helps fruit flies maintain brainpower
In lab tests, males dim mentally after generations without competitors.
- Health & Medicine
The two faces of prion proteins
Scientists are learning more about the protein behind mad cow and Creutzfeldt-Jakob disease, including how to interfere with the protein’s production in the brains of mice.
- Animals
We all sing like fish
From opera singers to toadfish, vertebrates may use basically similar circuitry for controlling vocal muscles.
- Life
How the snake got its fangs
A study of snake embryos suggests that fangs evolved once, then moved around in the head to give today’s snakes a variety of bites.
- Life
Female frogs play the field
A female frog insures a safe home for her young by mating with many males.
- Life
Climate warms, creatures head for the hills
Unusual data let scientists test predictions that global warming drives species up slopes.
- Genetics
Evolution of venom, binge eating seen in snake DNA
Python and cobra genes evolved quickly to enable hunting strategies.
- Animals
How the ghost shark lost its stomach
The lack of a digestive organ in fish and other animals is linked to genetics.
