Animals
Paw-print DNA lets scientists track out-of-sight polar bears
This environmental DNA can aid in conserving species that are hard or dangerous to observe.
HS-LS3-1
Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.
More Stories in HS-LS3-1
- Plants
Scientists Say: Fertilize
This word describes both a stage of sexual reproduction and the agricultural practice of adding nutrients to soil.
- Animals
Explainer: What is animal domestication?
The difference between a dog and a wolf isn’t looks or genes or even behavior. It’s the relationship these animals have with people.
- Humans
Let’s learn about Neandertals
Neandertals are an extinct species closely related to modern humans. They made tools and jewelry, controlled fires and cared for their sick.
- Archaeology
Neandertals were a lot like our human ancestors
From toolmaking to healthcare, new research finds that Neandertals shared many cultural and social similarities with our human ancestors.
- Health & Medicine
Toddler now thrives after prenatal treatment for a genetic disease
Ayla was treated before birth for the rare, life-threatening Pompe disease. Now a thriving 16-month-old toddler, her treatments will still need to continue.
- Genetics
For some kids, their rock-star hair comes naturally
A variant of a gene involved in hair-shaft formation was linked to most of the uncombable-hair-syndrome cases analyzed in a recent study.
- Chemistry
Lego-like way to snap molecules together wins 2022 chemistry Nobel
This so-called ‘click chemistry’ allows scientists to build complex molecules in the lab and in living cells.
- Health & Medicine
Examining Neandertal and Denisovan DNA wins a 2022 Nobel Prize
Svante Pääbo figured out how to examine the genetic material from these hominid ‘cousins’ of modern humans.
- Animals
Living mysteries: This critter has 38 times more DNA than you do
The genomes of salamanders are bloated with genetic “parasites.” That extra DNA slows down their lives and strands them in perpetual childhood.
