>>512016901. Wyrdeer hunted to extinction for fur that makes good insulation
2. Voltorb/Electrode hunted to extinction after humans, who wanted to catch their Pokemon, wiped out the apricot trees
3. Qwilfish killed off because it was a pest that sprayed poison everywhere (and was likely eaten because fugu)
4. Kleavor and Ursaluna extinct because humans used up all the peat and augurite that are necessary for their evolutions to take place
5. The rest likely died off due to humans having a huge impact on the landscape by laying down roads, cutting down trees, warming the surrounding region, and etc.