"It's that time of the year again: Shark Week. The TV program is so long-running that if you're under 37, you've never known a life without it. In honor of this oft misunderstood critter, we revisit our conversation with shark scientist Melissa Christina Marquez. She explains just how important sharks are to keeping the oceans healthy, including their role in mitigating climate change. Plus, there may be some talk about shark poop."

"Lone star ticks don’t spread Lyme disease, but they can transmit other serious diseases and are linked to a mysterious meat allergy. And the threat is growing."

"Two years after the U.S. Forest Service sparked what would become the largest and most destructive wildfire in New Mexico’s recorded history, independent investigators say there are gaps that need to be addressed if the agency is to be successful at using prescribed fire as a tool to reduce risk amid climate change."

"Over the past 80 years, one of the most resilient and hearty owls has practically engulfed a continent. Not everyone is pleased."

"The Biden administration has reinstated controversial Trump-era rules allowing what critics say are “barbaric” hunting practices that target bears and wolves, including pups or cubs, on federal land in Alaska.

"Scientists hope a sediment-laying strategy can help preserve the marine highway while restoring marshlands."

"Allegations of possible payments to help secure votes. Claims of abuse of agency funds by top diplomats. A possible job offer to entice a candidate to withdraw from a race. These are not the shenanigans of a corrupt election in an unstable country. Rather, they are efforts in the seemingly genteel parlors of a United Nations-affiliated agency, meant to sway decisions related to the start of seabed mining of the metals used in electric vehicles."

"A single line included in the proposed annual appropriations bill for the U.S. Department of Labor and other agencies could — if adopted by congress later this year — halt the implementation of a newly finalized rule limiting the amount of silica dust miners are exposed to while working underground."

"India's annual monsoon rains covered the entire country on Tuesday, six days ahead of the usual time of arrival, the state-run weather department said, although rain totals are still 7% below average so far this season."

"Flowing down the Mississippi River, the excess fertilizer that washes off vast swaths of farmland fuels a persistent “dead zone” in the Gulf of Mexico and threatens drinking water supplies upstream. Yet despite more than a quarter-century of federal effort and billions spent on potential solutions, experts say the watershed is “not even close” to its targets for fixing the problem."