Final answer:
Lemurs are not restricted to the island of Gombe and can be found in various habitats around the world. The genetic variability of lemurs can vary across different species.
Step-by-step explanation:
No, lemurs are not restricted to the island of Gombe. Lemurs are primates that are native to the tropical or subtropical regions of South America, Africa, and Asia. They range in size from the mouse lemur at 30 grams to the mountain gorilla at 200 kilograms. Lemurs are found in various habitats, including rainforests, dry forests, and mangroves.
As for genetic variability, lemurs can exhibit both low and high levels of genetic variability depending on the species. For example, studies have shown that some lemur species have low genetic diversity due to historical population declines and fragmentation of their habitat. On the other hand, other lemur species, like the ring-tailed lemur, display relatively high genetic diversity. So, the level of genetic variability in lemurs can vary across different species.