Viernum said, âBlack mambas are one of the fastest species of snakes, reaching slithering speed up to 12 mph [19 kph].â This is undoubtedly fast, but still slower than the myths of them outrunning horses would suggest. Over longer distances, they average about 7 mph (11 kph).
A bacteriophage, or a phage, is a virus that infects bacteria, so these don't infect human cells âthey are very specialised and only infect bacteria. So every bacteria is being attacked by various viruses which are using those as the host that they replicate in.
Most viruses are restricted to a particular type of host. Some infect bacteria, and are known as bacteriophages, whereas others are known that infect algae, protozoa, fungi (mycoviruses), invertebrates, vertebrates or vascular plants.