Jacek Krywko on Muck Rack

Jacek Krywko

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Poland
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Articles

Early land animals skipped the tadpole phase

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By Jacek Krywko Verified
| Tech News Tube
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Early land animals skipped the tadpole phase

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By Jacek Krywko Verified
| Ars Technica Verified
Current amphibian development may not have been typical of early land vertebrates. The skull of an adult embolomere found in Ohio. The skull of an adult embolomere found in Ohio. For decades, biologists thought that early tetrapods, ancient vertebrates that started conquering the land over 300 million years ago, developed like modern amphibians—beginning their lives as purely aquatic tadpoles and then metamorphosing into terrestrial adults.
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Beans use an immune receptor to call in airstrikes on caterpillars

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By Jacek Krywko Verified
| Ars Technica Verified
When they’re being eaten, bean plants release chemicals that draw in parasitic wasps. For decades, scientists have understood that plants can release volatile organic compounds—essentially airborne chemical signals—to attract the natural enemies of the things that eat them, like caterpillars. What we didn’t know was exactly how a plant translates the physical act of being eaten into a specific, predator-summoning distress signal.
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