Place in the oven and roast for 1 1/2 hours, or 30 minutes per pound. 7. Test the roast to make sure it's done. Remove the lid or foil from the pan and insert a meat thermometer into the roast.1  Rare meat is done when its temperature has reached 125 degrees Fahrenheit(52 degrees Celsius).lace in the oven and roast for 1 1/2 hours, or 30 minutes per pound. 7. Test the roast to make sure it's done. Remove the lid or foil from the pan and insert a meat thermometer into the roast. 1  Rare meat is done when its temperature has reached 125 degrees Fahrenheit(52 degrees Celsius).
The eastern lowland gorilla has a black color. The mountain gorilla is black like the eastern lo â¦ wland gorilla, but the hair is longer. The adult male who controls the group develops silver hairs on his back, thus the name silver-back. 12 people found this useful.
Two subspecies exists: Species: Western Lowland Gorilla. Scientific name: Gorilla gorilla gorilla. Location: Democratic Republic of Congo. Population: 100,000. Conservation status: Critically Endangered. Physical characteristics: Males silverback colouring extends onto the thighs, also have redder hair on their heads.n recent decades gorilla populations have been affected by habitat loss, disease and poaching. Subsequently all gorilla species are classified as endangered by the International Union for Conservation of Nature (IUCN).