Tracy

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Black widow spider

9 of the World’s Deadliest Spiders

Saguaro cacti dot the Sonoran Desert landscape at Saguaro National Park, Arizona. Formerly Saguaro National Monument cactus

Can You Drink Water from a Cactus?

Bog body. Head of Tollund Man. Died at about age 30-40, Dated to about 280 BCE early Iron Age. Found Bjaeldskovdal bog Denmark in 1950 near Elling Woman. Most well preserved bog body to date. Human remains mummified in natural peat bogs. mummy, embalm

9 Noteworthy Bog Bodies (And What They Tell Us)

American bison (Bison bison) also known as buffalo or plains buffalo on the prairie, western U.S.

What’s the Difference Between Bison and Buffalo?

Mother tickling her daughter, sitting in a garden

Why Can’t You Tickle Yourself?

Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.

10 Famous Artworks by Leonardo da Vinci

King Cobra snake in Malaysia. (reptile)

9 of the World’s Deadliest Snakes

Tracy

sheep

Learn about this topic in these articles:

use in pharming and pharmaceutical development

In pharming
…pharming was a sheep named Tracy, born in 1990 and created by scientists led by British developmental biologist Ian Wilmut at Roslin Institute in Scotland. Tracy was created from a zygote (a single-celled fertilized embryo) genetically engineered through DNA injection to produce milk containing large quantities of the human enzyme…
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work of Wilmut

In Ian Wilmut: Pharming
…generation of a sheep named Tracy. Tracy was created from a zygote genetically engineered through DNA injection to produce milk containing large quantities of the human enzyme alpha-1 antitrypsin, a substance used to treat cystic fibrosis and emphysema.
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