Study estimates there are 20 trillion ants on Earth

According to a study published in the journal PNAS, a team of scientists at the University of Hong Kong estimates that there are 20 trillion ants in total on Earth. Their total mass is equivalent to that of all wild birds and mammals combined. There are 2.5 million ants for every human being on the planet. Ants, like humans, have their footprints all over the world. Ants are most abundant in tropical and subtropical regions, and can be found in almost all but the coldest places on Earth, the researchers said. Because of habitat destruction, climate change and widespread use of pesticides, scientists are concerned that insect populations are declining, but are not sure if ant populations are declining. This is the next question the research team is ready to answer.

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