What cause a new extinction event without weapons or ansteroids?

What color represents crazy? What are some Taiga forest biome facts? What are the ways in which you can protect animals from extinction? Who is responsible for the endangered animals? How are the three forests biomes different? Do some 3 toed sloths really have moss growing on them? How fast can a maned wolf run? Do fruit bats eat vegetables? IF you were a tiger express your feeling as an extinct animal? How has de-forestation affected rainforest animals? Are black rhinos extinct? About how many Komodo dragons are left in the wild? Words that mean irreplaceable? Is an otter webbed footed? What are facts about the cave bear? What do tarsiers breathe? What species do you think would be the most affected by this change? How does pandas get shelter in the zoo? Aside from the flightless kakapo of New Zealand what is the world's largest parrot? How can you be protected from being hacked?