Genetics
Scientists Say: Genetic Engineering
Genetic engineering involves adding, changing or removing certain pieces of DNA from a living thing to give it desired traits.
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Genetic engineering involves adding, changing or removing certain pieces of DNA from a living thing to give it desired traits.
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Similar to mammals, this caecilian — an egg-laying amphibian — makes a nutrient-rich, milk-like fluid to feed its babies up to six times a day.
In a study of more than 400 mammal species, less than half have males that are heavier than females.
These special memory cells were present in people with allergies and absent in those without.
Microbes vastly outnumber multicellular life on Earth. A close-up look at protists highlights how much we don't know about the microscopic world.
From reindeer that snooze while chewing to penguins that take thousands of naps each day, the animal kingdom has some truly weird sleep patterns.
Soil erosion washes pollutants into streams and rivers — but plants may help limit that.
Its yellow flowers can cool themselves substantially, staying up to 10 degrees C (18 degrees F) cooler in extreme heat.
Science reveals the many reasons we are so distracted, from poor sleep and social media to diet and exercise. It also shows us how to take back our focus.
Under stress, a chemical change signals these water bears to switch between live and mostly dead.