Search Results for: Vertebrates
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1,505 results
- Paleontology
Mastodons in Musth: Tusks may chronicle battles between males
Damage in the fossil tusks of male mastodons suggests that the creatures engaged in fierce combat with rival males at a certain time of year each year of their adult lives.
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Digital Dissection
The same medical technology used to image brain tumors and torn knee ligaments is taking the field of marine biology to a new dimension by allowing anyone with Internet access to examine fish as never before. This Web page describes how researchers at the University of California, San Diego’s Keck Center for Functional Magnetic Resonance […]
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Quirky Cardiology: Crocs’ hearts may aid their digestion
The crocodile's ability to direct oxygen-depleted blood to its stomach may be instrumental in digesting large, bony meals.
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Genome Buzz: Honeybee DNA raises social questions
Scientists have officially unveiled the DNA code of the western honeybee, the first genome to be sequenced for an animal with ultrastratified societies.
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Mammalian ear cells can regenerate
The cells responsible for hearing in mammals may be capable of regeneration, just as those of birds and other vertebrates are.
- Paleontology
Dinosaur neck size reaches new extreme
Scientists have unearthed remains of a massive, plant-eating dinosaur whose neck may have been twice as long as its body.
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Vertebrates, insects share the stress
A key protein involved in animals' physiological responses to stress has carried out the same function since before any organism developed a backbone.
- Humans
Science News of the Year 2007
A review of important scientific achievements reported in Science News during the past year.
- Health & Medicine
Now Hear This
Genetics research, work with stem cells, and studies of the inner ear's delicate architecture suggest that it might be possible to restore cells pivotal to hearing.
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Blood Sucker: Like the adult heart, the developing heart takes advantage of suction
The embryonic heart works more like the adult heart than scientists had long assumed.
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Macho Makeover: Fish rapidly ascend social ladder
Some male fish can upgrade their social status, and their appearance, in a matter of minutes.
- Paleontology
Sight for ‘Saur Eyes: T. rex vision was among nature’s best
A study of dinosaur eyes finds that Tyrannosaurus rex had very sophisticated vision that may have helped its predatory abilities.
