Gardening season is in full swing, and you may have questions. For answers, turn to Ask an Expert, an online question-and-answer tool from Oregon State University’s Extension Service. OSU Extension ...
June 18 (UPI) --New research has revealed the origins of thorns, the rigid extensions that a variety of plant species use to protect themselves from herbivores. Not all plant spikes are thorns. The ...
''Why do plants have thorns?'' is an easy question: The thorns help protect against hungry animals that like to munch on the plants. ''Where do thorns come from?'' is a more complicated question -- ...
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