China's National Tourism Day falls on May 19 every year starting the year of 2011. The date was chosen to commemorate the day when China's ancient travel book writer Xu Xiake (1587-1641) began writing his masterpiece "Travel Notes of Xu Xiake". Special friendship cuts across species China...
Can a small group of drones(无人机)guarantee the safety and reliability of railways and, at the same time, help railway operators save billions of euros each year? That is the very likely future of applying today’s “eyes in the sky” technology to making sure that the millions of kilom...
Sheep raising is not normal in these regions, while cattle is the most common definitive host. According to the data obtained from slaughterhouse observations in Bandar-Anzali and Rasht, the main fasciolid in local cattle is F. gigantica. Of 928 adult liver flukes collected from 13 infected ...
Mammoths and Asian elephants are pretty closely related, whereas it had been more than 20 million years since the dodo and the Nicobar pigeon had any common ancestors. Genetic differences between the two bird species are therefore much greater, making it a formidable task to create a successful ...
61、n China tiger is more primitive than other tiger species, with a larger ratio of skull length to skull width, slender body, thinner abdomen, and closer proximity to the tigers direct ancestor, the ancient Chinese cat.Southern China tiger gestation period of about 103 days, the average tim...
While the odds of being attacked by a shark at Sea Pines Beach are quite low, the chances of seeing one in the waters are quite high, as the waters are breeding grounds for many species. Anglers can catch a wide variety of sharks off the coast, but if you're thinking of doing some...
of the tobacco mosaic virus by Martinus Beijerinck in 1898,[4] more than 9,000 virus species have been described in detail[5] of the millions of types of viruses in the environment.[6] Viruses are found in almost every ecosystem on Earth and are the most numerous type of biological ...
and all domesticated cultivars present only in two of those clades. The molecular dating analysis showed this species origin in Europe on 4.6 Ma and we proposed the main dispersal routes. The detailed mitogenome structure studies showed that the insertion of the plasmid-derived dpo gene caused a...
The most common vegetation type on earth—grassland—is often agricultural in usage. Many are either directly grazed, or, as is the case for the most productive ones, harvested for hay which is then consumed when pasture is no longer growing enough to support cattle or sheep. Rapidly increasin...
ait is common knowledge that most psoriatic conditions usually improve during the summer and get worse in the winter. During the colder months,home-heating units reduce the humidity in the air and subsequently dry out the skin. 它是多数psoriatic情况通常改进在夏天期间并且得到坏在冬天的尽人皆知。