China High-Speed Railway Technology Co., Ltd. specialized in operation and maintenance of High-speed, Normal-speed railways and Urban rail transit industry. Its product include High-Speed ...

In a hard-to-reach cave of northeastern India, a “slender” river creature with “fleshy” lips tucked itself under a rock. A flash of bright light startled it. It swam away “fast” — but not fast enough.

Scientists have discovered that the long-extinct megalodon, also known as the megatooth shark, had a body temperature ... “Warm-bloodedness requires constant high food intake to sustain high ...