The animal meat that is not edible are polar bear liver, puffer fish, possums, rats and polar bears and even platypus.
Polar bear liver is not edible due to high vitamin A content and puffer fish are not edible as some species of pufferfish have toxic organs.
And while you technically could eat rats and possibly possums, the could carry diseases which cold make you sick.
Certain species of pufferfish contain tetrodotoxin, which is a potent neurotoxin, that is primarily from the pufferfishes skin, liver and eyes and reproductive organs.
Although trained chefs can prepare some pufferfish to make it safe to eat.
And animals such as possums and rats which scavenge on waste might harbor diseases and parasites, which makes their meat unsafe in some cases.
And some birds are not palatable as a result of taste and texture.
The high vitamin A in polar bear liver can cause hypervitaminosis A and serious illness if eaten.