The bad news was that the bugs didnât die nearly as quickly as other studies had found, a mere hour or two at -16Â° or -17Â° Celsius. âIn our study, bedbugs survived lower temperatures, with eggs surviving in short-term exposures â¦ to temperatures as low as -25Â° C,â the researchers write. But the bugs are not freeze tolerant, the scientists found, and they can be killed â no matter their stage of life or feeding status.
1 The average weight of the hippopotamus male measures around 1.500 â 1.800 kg (3,300 â 4,000 lb). 2  Males are slightly heavier as compared to females. 3  However, females weigh around 1,300 â 1,500 kg (2,900 â 3,300 lb).
Common hippos give birth underwater, while pygmy hippo calves are born on land. A pygmy hippo calf can nurse from its mother on land or underwater. A loud eater, the pygmy hippo can be heard munching from up to 150 feet (45 meters) away. Pygmy hippos were unknown to Western science until about 1840.A common or river hippo weighs about 10 times as much as a pygmy hippo. loud eater, the pygmy hippo can be heard munching from up to 150 feet (45 meters) away. Pygmy hippos were unknown to Western science until about 1840. A common or river hippo weighs about 10 times as much as a pygmy hippo.