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You report that “the sea squirt has the beginnings of a spinal cord, making it a so-called chordate.” That’s the same mistake I fight against each time I teach my zoology class. What makes a sea squirt a chordate is the notochord in the animal’s larval stage. A notochord is a skeletal component, not a […]
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Sea squirt’s DNA makes a splash
The DNA sequence of a sea squirt may reveal the origins of vertebrates.
- Plants
Drought-tolerant plant mined for survival genes
A drought-resistant South African plant is revealing its genetic secrets.
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Tests revise image of kangaroo rats
An ecological study of kangaroo rats has revised thinking about how these desert dwellers cope with their stressful home.
