Tumbleweeds originated in Russia and Siberia and they were brought to the United States in the 1870s, hidden among imported flax seeds. It only took 20 years for the plants to spread throughout the western United States and parts of Canada.
Dogs do have a sense of time, but it differs from the way humans perceive it. A dog’s concept of time revolves around routine, daily patterns, and associative learning. Dogs can’t understand time in the abstract sense of hours and minutes, but they d
Earth’s magnetic poles flip roughly every 200k to 300k years, but the last reversal was about 780k years ago. Some scientists think we’re overdue, but the timing is unpredictable and could take thousands of years. A flip might disrupt technology and
In the 18th century, it was trendy in some fashionable circles for women to wear clothes that exposed their breasts and nipples. I guess I would’ve fit in pretty well.
A study shows up to 30% of Sun-like stars may engulf planets, altering their metallicity. These "polluted" stars suggest rocky planets are destroyed during orbital decay. Ultra-short-period planets in compact systems are key to understanding this pheno
A cockroach can hold its breath for 40 minutes. These pests can even survive being submerged under water for half an hour. They hold their breath often to help regulate their loss of water.
