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Reference Terms
from Wikipedia, the free encyclopedia

Heirloom plant

An heirloom plant is an open-pollinated cultivar that was commonly grown during earlier periods in human history, but which is not used in modern large-scale agriculture.

Note:The above text is excerpted from the Wikipedia article "Heirloom plant", which has been released under theGNU Free Documentation License.
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Plants & Animals News
July 21, 2023

Post-Menopause Orca Mothers Protect Their Sons from Being Injured by Other Orcas

Female killer whales live up to ninety years in the wild, and most live an average of twenty-two years after menopause. Scientists have long wondered why humans and some whale species spend a significant portion of their life not reproducing. ...

Gene Mutation May Explain Why Some Don't Get Sick from COVID-19

People who contract COVID-19 but never develop symptoms -- the so-called super dodgers -- may have a genetic ace up their sleeve. They're more than twice as likely as those who become symptomatic to carry a specific gene variation that helps them obliterate the virus, according to a new ...

'Mind Controlling' Parasitic Worms Are Missing Genes Found in Every Other Animal

Parasitic hairworms manipulate the behavior of their hosts in what's sometimes called 'mind control.' A new study reveals another strange trait shared by different hairworm species: they're missing about 30% of the genes that researchers expected ...

Unusual Fossil Shows Rare Evidence of a Mammal Attacking a Dinosaur

Scientists have described an unusual fossil from around 125 million years ago in China that shows a dramatic moment in time when a carnivorous mammal attacked a larger plant-eating dinosaur. The two animals are locked in mortal combat, and it's among the first evidence to show actual predatory ...
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