Studies of altitudinal gradients in species richness have increasingly replaced the latitudinal gradient as a model template for large-scale gradient studies 9. Altitudinal gradients encompass several ...
The Douglas fir is a tall iconic pine tree in Western North America forming a forest that winds unbroken from the Western spine of British Columbia all the way to the Mexican cordillera. The ...
Many animals get their external marking — such as, feathers, hair or scales-from genetics. But it turns out, the crocodile gets its head patterns differently. (Story aired on ATC on Dec. 11, 202.) We ...
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