Woolly mammoths were about as big as today's Asian elephants, according to AZ animals. Males stood about up to about 11 feet tall (3.5 meters) at the shoulder, while females were a bit shorter, at up to around 9.5 feet (3 m). Woolly mammoths were heavy: Males could weigh in at 1...
DEA PICTURE LIBRARY/Getty Images By the end of the last Ice Age, about 10,000 years ago, pretty much all the world's mammoths had succumbed toclimate changeand predation by humans. The exception was a small population of woolly mammoths that lived on Wrangel Island, off the coast of Sibe...
The longhorned tick is native to Asia. It's present in the United States, where its numbers are increasing. In some areas, it transmits microbes that cause disease.
—a controversial company dedicated to dog and cat cloning—transplant Little Nicky's DNA into an egg cell. A surrogate mother cat carried the embryo, and gave birth to a kitten that was similar in appearance and temperament to Julie's prized kitty. According to newspaper interviews, Julie ...
Some captive female sharks have been known to reproduce without the aid of a male, essentially cloning themselves, Shiffman said. In 2001, a female hammerhead shark gave birth in the Henry Doorly Zoo in Nebraska without mating with a male, taking researchers by surprise. It's an example of ...
Jellyfish have two main stages in life: polyp and medusa. The medusa stage is what most of us think of when picturing a jellyfish. The polyps look like tiny anemones, and they are capable of cloning themselves several times over before they finally bloom into medusas.What makes the immort...
Most prokaryotic cells replicate by a process calledbinary fission. This is a type of cloning process in which two identical cells are derived from a single cell. Eukaryotic organisms are also capable ofreproducing asexuallythroughmitosis. In addition, some eukaryotes are capable ofsexual reproduction...
By using an organism-independent strategy, utilizing the total DNA isolated from environmental samples containing unculturable strains, exploiting their genes, clusters by cloning them into metagenomic DNA, we can express partial or complete biosynthetic pathways. This metagenomic approach seems to be the...
declared extinct in 2000. However, it may not be gone forever. In 2009, Spanish biologists used frozen tissue toclone a Pyrenean ibex. The clone only lived for seven minutes, but scientists are hopeful that this cloned ibex will pave the way for the successful cloning of extinct animals. ...
Some scientists have proposed reviving extinct animals via cloning, using DNA from the remains of that species. For this to succeed, enough individuals would have to be cloned from the DNA of different individuals to create a viable population. The Pyrenean ibex, a subspecies of Spanish ibex ...