Here is the full list of all 31 Niche - there are a genetics survival game achievements.
Find all 5 prehistoric genes
Special Youtuber achievement to honor JessiMew. Breed an animal with Black fur, White Pattern Color, Violet Eyes, two Claws, Big Body, Ram and name it JessiMew
Survive for 50 days
Special achievement to honor Erose. Breed an animal with Stinky Tail, Big Ears, at least one E Immunity Gene and name it Erose
Breed an animal with Platypus Beak and Beaver Tail and name it Perry
Breed an animal with a racoon pattern
Breed an animal with 12+ strength
Breed an animal with Sabertooth Fangs, Mammut Feet, Hammer Tail and Megaloceros Horns
Breed an animal with 6+ swimming and underwater breathing ability
Breed an animal with 5+ heat resistence
Breed an animal with 5+ cold resistence
Have an animal with melanism
Have an animal with albinism
Go extinct on the first island
Mate for the first time
Traverse the Archipelago island and travel north to new lands
Get rid of the plants that block the northern exit of the island and travel to new lands
Return to Adam's original island
Discover all island types
Survive for 250 days
Survive for 1000 days
Unlock all genes
Have a member of Adam's original tribe join your pack
Catch a Clownkoi
Give birth to twins
Give birth to identical twins
A baby is kidnapped by a bird of prey
Have only one animal of one sex and a lot of animals of the opposite sex
Mate at least 10 times on one day
Special achievement to honor Seri! Pixel Biologist! Breed an animal with White Fur (not albino), Red Horn Color, Antlers, at least 1 Berry Paw, Webbed Hindlegs, Fishing Tail and name it Doeli
Special Youtuber achievement to honor EmmaUniverse. Breed an animal with Black Fur (no melanism), Yellow Eyes, No Pattern, Poison Fangs, one Claw, Nimble Fingers and name it Emma