Social problems

Fossil egg study suggests dinosaurs were already in decline when asteroid hit |  CNN

Fossil egg study suggests dinosaurs were already in decline when asteroid hit | CNN

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — It’s a fierce paleontological debate. Did the massive asteroid that struck Earth 66 million years ago wipe out a thriving and diverse population of dinosaurs, or were they already struggling to survive when …

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Teenagers get into vapes and weed, losing interest in booze and other drugs

Teenagers get into vapes and weed, losing interest in booze and other drugs

Photo: Shutterstock (Shutterstock) Teens have been using drugs less and less over the past few decades, with two notable exceptions, according to a new study this week. Reported levels of drug use have declined for most substances since the early 1990s, the study found, but rates of cannabis use and vaping have increased. The results …

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