The IUCN Green Status, which assesses species' population recovery and ecological functionality, was introduced after the IUCN Red List's launch in 1964.
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- Chocolate products provide approximately 2–35 mg of caffeine per serving.
- Solenodon venom consists of multiple kallikrein-1 serine proteases.
- Bowhead whales (Balaena mysticetus) are listed as Least Concern.
- The deep Atlantic contains some of the world's oldest and most spectacular cold-water coral reefs and deep-sea sponge grounds, which depend on ocean currents to deliver food and disperse offspring.
- 94% of the world's 101 surviving lemur species are threatened with extinction, according to an IUCN Red List update.
- The IUCN Red List is used to help inform conservation decisions and policy.