Tetepare supports pristine lowland rainforest and a rich inshore marine area.

[2] The local residents were apparently once a distinct ethnic group; a Tetepare language and unique traditions are attested, but information is fragmentary.

[3] At the western tip, a 3.75-square-kilometre (1.45-square-mile) coconut plantation was established in 1907–1918, but this declined since World War II and all maintenance ceased after 1990.

[5] Sharks, dolphins, crocodiles and an extraordinary diversity of fish species make the island's reefs their home.

The birdwing butterfly (Ornithoptera victoria) was for the first time confirmed to exist on Tetepare, though the dead specimen was in such a state of decay that the specific subspecies could not be determined.

Possibly the pigs and maybe the cats have extirpated certain ground birds, as indicated by the paucity of Gallicolumba doves and rails.

The majestic Sanford's sea-eagle is plentiful, and among rarer birds, the beach thick-knee, crested cuckoo-dove and Kolombangara monarch are found.

Nicobar pigeons and island imperial-pigeons use Tetepare as a foraging ground, crossing over from their roosts in neighboring mangrove swamps in huge numbers.

In addition, some flying foxes from Tetepare are hitherto unidentified; possibly the New Georgia monkey-faced bat (Pteralopex taki) is one of them.

[6][8] In 1995 Friends of Tetepare was formed from a group of customary landowners to prevent commercial logging on the island.