[ad_1] According to the researchers, monarch butterflies conduct one of the most dramatic migrations in the world. Each fall, the monarchs in New England turn south and begin a 3,000-mile journey to their overwintering grounds. But like all insects, monarchs are dwindling. The number that complete that long migration has fallen by 90 percent in […]
Category: extinction
Test tube embryo transfer may give near-extinct rhinos a second chance
[ad_1] It’s a positive sign, but there are concerns. Ultrasound exams showed that the test embryo is smaller than expected and isn’t guaranteed to lead to a successful birth. Scientists also have to wait for permission from Kenya to harvest the northern rhinos’ eggs. While the government backs the plan, it’s not certain how long […]