Numbers in the News

LA MTA (SKELETON); STUART DEE/GETTY IMAGES (MASTODON)

Mastodon skeleton and illustration (See "10,000" below)

15,285

Depth in feet to which scientists in Iceland drilled into a volcano to access heat energy. The hole is the deepest of its kind ever made.

10,000

Age in years of a mastodon skeleton recently unearthed during an expansion of the Los Angeles subway system.

2,200

Approximate number of ring-tailed lemurs remaining in the wild, according to new studies. The population has declined 95% since 2000.

265

Height in feet of Africa’s tallest known tree, recently found on Mount Kilimanjaro.

125

Number of years since the founding of the Sierra Club, the largest outdoor recreational and environmental organization in the U.S.