The Spruce Pets on MSN4 个月
African Clawed Frogs: Species Profile
African clawed frogs get their name from the three claws on their hind feet, which are used to tear apart food. These aquatic ...
Max Planck Society1 个月
Some frogs like it hot, others like it cold
Actually, they are quite similar. The three clawed frog species, Xenopus borealis, laevis and tropicalis, are about as closely related as a horse and a donkey. But when it comes to their comfort ...
Nature5 年
Marked swelling with coalescing ecchymoses of the lower mandible in a Xenopus laevis frog
A female African clawed frog, Xenopus laevis, was housed at the Biological Resources Facility of North Carolina State University in a tank with two other females. The frog was ∼1.5 years old and ...
来自MSN1 个月
Rapid evolution: African clawed frog sex determination challenges prevailing theory
More information: Ben J Evans et al, Rapid Sex Chromosome Turnover in African Clawed Frogs (Xenopus) and the Origins of New Sex Chromosomes, Molecular Biology and Evolution (2024). DOI: 10.1093 ...
Business Insider India7 年
Frogs used to tell women if they were pregnant - here's how the test worked and why it was ...
African clawed frogs used to be the best human pregnancy tests in the world. Doctors would inject a woman's urine into the back of a female frog; if positive, the frog would lay eggs. Frog or ...