Species Loss

Species Loss

<><><> Monarch Butterflies <><><>

Data source: Brower, L.P. et al., Decline of monarch butterflies overwintering in Mexico: is the migratory phenomenon at risk? Insect Conservation and Diversity (2012), 5, 95-100. [1994-2011] and Rendon-Salinas, E. et al. Area of Forest Occupied by the Colonies of Monarch Butterflies in Mexico During the 2022-2023 Overwintering Period. [2012-2023], Monarch Winter 2025-2026 Population Numbers Relwased by Monarch Butterfly Fund [2024-2026]. Last updated 2026/04/03.

<><><> Fireflies <><><>

Are Fireflies Disappearing? Farmers' Almanac (2021/02/08)

<><><> North American Birds <><><>

Three billion North American birds have vanished since 1970 Science (2019/09/19)

<><><> Polar Bears <><><>

Are Polar Bears Endangered? Polar Bears International

<><><> Other Endangered Species <><><>

Endangered Species U.S. Fish & Wildlife Service