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.
Individuals vary, but many western lowland gorillas (G. g. gorilla)âthe subspecies to which the Zoo's gorillas belongâhave brownish-gray coats, unlike the often blackish coats of the mountain (G. b. beringei) and eastern lowland (G. b. graueri) gorillas.astern lowland gorillas, also called Grauer's gorillas, live in tropical forests from low elevations up to 8,000 feet in the Democratic Republic of the Congo (formerly Zaire) and along the border with Uganda and Rwanda.