Urbanization

Los Angeles Mayor Eric Garcetti speaks during a news conference Tuesday, Jan. 29, 2019, in Los Angeles. Garcetti will not seek the Democratic presidential nomination in 2020, slightly winnowing a field that is still likely to be large and unwieldy for a party desperate to oust President Donald Trump.(AP Photo/Jae C. Hong)
January 29, 2019 - 11:42 pm
LOS ANGELES (AP) — Los Angeles Mayor Eric Garcetti will not seek the Democratic presidential nomination in 2020, slightly winnowing a field that is still likely to be large and unwieldy for a party desperate to oust President Donald Trump. "I have decided not to throw my hat into the ring to run...
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In this undated photo provided by researchers in December 2018, a male tungara frog in Panama uses his vocal sac to call out in Gamboa, Panama. A study released on Monday, Dec. 10, 2018, examines why these amphibians adapt their mating calls in urban areas _ an unexpected example of how animals change communication strategies when cities encroach on forests. (Adam Dunn via AP)
December 10, 2018 - 11:09 am
WASHINGTON (AP) — City frogs and rainforest frogs don't sing the same tune, researchers have found. A study released Monday examined why Panama's tiny tungara frogs adapt their mating calls in urban areas — an unexpected example of how animals change communication strategies when cities encroach on...
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