Hues of the past: How we determine the colors of prehistoric animals

dinosaur full
Image: Mark Garlick / Science Photo Library
[Paleontologist Maria McNamara] studies tissues from insects and vertebrates in order to envision what these critters looked like and how they interacted with their environments—what their predators were, where they lived, what their mating habits may have been and more.

[Smithsonian:] In what ways does color develop in nature?

[McNamara:] Color can be produced in two different ways. Many modern organisms, including animals, produce color using pigments. Pigments are chemicals that selectively absorb light of specific wavelengths.

Structural color doesn’t use pigments at all and instead uses very ornate tissue structures at the nanoscale. Basically some animals’ tissues will fold into highly complex structures at the nanometer level—or in other words, at same scale as the wavelength of light. Those structures affect the way light passes through biological tissues, so they can essentially filter out certain wavelengths and produce really strong colors.

Related article:  Computer scientists turn to evolutionary biology for inspiration

[Smithsonian:] What types of fossils preserve color best?

[McNamara:] We think we should be looking for fossils preserved in the mineral calcium phosphate. That was the case with the snake that we studied in 2016. The colors of the snake are preserved; the whole skin of the snake is preserved.

Read full, original post: How Do Scientists Know What Colors Prehistoric Animals Were?

Outbreak
Outbreak Daily Digest
Biotech Facts & Fallacies
Genetics Unzipped
Infographic: How dangerous COVID mutant strains develop

Infographic: How dangerous COVID mutant strains develop

Sometime in 2019, probably in China, SARS CoV-2 figured out a way to interact with a specific "spike" on the ...
Untitled

Philip Njemanze: Leading African anti-GMO activist claims Gates Foundation destroying Nigeria

Nigerian anti-GMO activist, physician, and inventor pushes anti-gay and anti-GMO ...

Most Popular

News on human & agricultural genetics and biotechnology delivered to your inbox.
glp menu logo outlined

Newsletter Subscription

Optional. Mail on special occasions.
Send this to a friend