Recent Posts by Joseph

Venus flytraps don't eat the insects that pollinate them

[unable to retrieve full-text content]While most people are familiar with Venus flytraps and their snapping jaws, there is still a lot that scientists don't know about the biology of these carnivorous plants. Researchers have for the first time discovered which insects pollinate the rare plants in their native habitat -- and discovered that the flytraps...
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Another piece to the puzzle in naked mole rats' long, cancer-free life

With their large buck teeth and wrinkled, hairless bodies, naked mole rats won't be winning any awards for cutest rodent. But their long life span -- they can live up to 30 years, the longest of any rodent -- and remarkable resistance to age-related diseases, offer scientists key clues to the mysteries of aging and...

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New ethics committee aims to help veterinarians navigate complex care situations

Advances in veterinary technology provide pet owners with an ever-increasing array of treatment options for their pets. However, more options can lead to complex situations and difficult questions about care goals and quality of life that must be navigated by veterinary caregivers and pet owners. Clinicians and researchers from North Carolina State University and Duke...

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Ants: Master manipulators for biodiversity, or sweet treats

Symbiotic ants manipulate aphid reproduction rates to achieve a specific mix of green and red aphids, maintaining the inferior green aphids which produce the ants' favorite snack.

Ants and aphids coexist in a symbiotic relationship that benefits both species. Ants protect aphids from predators, such as lady bugs and wasps, and aphids secrete nutritious honeydew for...

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Evolutionary biology: Sponges can economize on oxygen use

Sponges lack a signaling pathway that responds to low intracellular oxygen levels in more complex animals. Do they use a different mechanism for this purpose or did their earliest ancestors evolve at a time when less oxygen was available?

Gert W├Ârheide holds the Chair of Paleontology and Geobiology at the Department of Earth and Environmental Sciences...

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