Dog owners have similar germs growing on their skin: a signature blend of bacteria from canines' tongues and paws. Scientists couldn't find an analogous signature for cat owners. Perhaps cats are just being selfish.
Coral reefs are in trouble worldwide, from a host of threats, including warming ocean temperatures, nutrient runoff and increasing ocean acidity. A noted climate scientist from California has been conducting an experiment on Australia's Great Barrier Reef to see whether antacid could boost coral growth.
The days of made-to-order ice cream are far from over in San Francisco. A small shop that operates out of an old shipping container uses liquid nitrogen to freeze ingredients together in about a minute for an ultra-fresh, ultra-smooth treat.
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