RATS
Rats and Mice both belong to a group of mammals known as rodents, the most important characteristic of which is the possession of constantly growing incisor teeth. This feature means that these animals must constantly gnaw to keep the growth in check. Both rodents are colour blind and have an acute sense of smell, hearing and touch.
The common rat (Brown or Sewer rat) is very nervous of new object—known as ‘neophobia’ . They live under buildings, in refuse heaps, in holes and in sewers. Their lifespan is between 9-18 months and can produce up to 7 litters of 8-10
Habitat: Brown rats will burrow and live outdoors, indoors or in sewers and nest in burrows. Black rats are non burrowing and will nest mainly in walls, vines or trees. The Brown rat can climb, but is not agile—unlike the Black Rat.
Brown Rats are good swimmers and are predictable in habit, unlike the black rat.
Description: The more common Brown Rats are approx 335g in weight and tend to have a bulky body with small hairy ears and a blunt nozzle (black rats will be pointed). They are either brown or brown-grey in colour. Their droppings are approx 12mm and spindle shaped and can be either in groups or scattered. They have a scaly tail which is normally 3/4 length of the head and body. Black rats are slightly smaller and weight 200 grams. Brown rats have a harsh and shaggy fur, whilst the Black rat has a smoother, softer fur.
Feeding habits: Rats are omnivorous. The Brown rat will eat meat, whereas the black rat will east mainly fruits, nuts, grains and vegetables. They can both consume up to 30g per day, they need to drink water or eat food with a high water content.
