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Mar. 9, 2022 Dinosaurs went extinct 65 million years ago, mammoths 4,000 years ago, and the Christmas Island Rat 119 years ago. Since becoming a popular concept in the 1990s, de-extinction efforts have focused on ...
May 3, 2022 New ancient DNA analysis has shed light on how the black rat, blamed for spreading Black Death, dispersed across Europe -- revealing that the rodent colonized the continent on two occasions in the ...
Aug. 4, 2022 Researchers generated rat sperm cells inside sterile mice using a technique called blastocyst ...
June 20, 2023 Some animals release chemical pheromones which can trigger behavioral or hormonal changes in other animals. It is known that calm rats can reduce the fear of nearby rats, but the exact mechanism was ...
Nov. 15, 2022 Researchers have assembled the first reference genome for the Nile rat -- a kind of genetic template of this species that may be used for laboratory and clinical studies. The hope is that it will be ...
Mar. 2, 2021 Pluripotent stem cells (PSCs) can make all the tissues including gametes such as sperm and eggs. Researchers report a robust method for the generation of gametes from PSCs using the body of rats that ...
Nov. 28, 2022 The Sox9 gene is upregulated in the absence of sex-determining Y chromosome and Sry gene in Amami spiny ...
Apr. 21, 2021 Scientists have provided the first evidence to show that eradicating rats from tropical islands effects not just the biodiversity on the islands, but also the fragile coral seas that surround ...
Jan. 5, 2023 Scientists have discovered for the first time that invasive rats on tropical islands are affecting the territorial behavior of fish on surrounding coral reefs. The new study shows that the presence ...
July 13, 2021 A decade after scientists discovered that lab rats will rescue a fellow rat in distress, but not a rat they consider an outsider, new research pinpoints the brain regions that drive rats to ...