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The International Union for the Conservation of Nature added the migrating monarch butterfly for to its "red list" of threatened species and categorized it as "endangered" — two steps from extinct.
Monarch butterfly populations in North America declined between 22 and 72 per cent in 10 years, depending on the measure. But tiger numbers are on the up.
There are 40 percent more tigers in the wild than previously thought, but with a maximum of 5,578 on the prowl, they remain an endangered species, conservationists said Thursday
Closer Video Disturbance at Key Monarch Butterflies Migration Site The number of migrating monarch butterflies continues to decline at California's Pismo
As the monarch butterfly fluttered a step closer to extinction Thursday, many wondered what they can do to help.