Michael Dwyer / AP

Baby humpback whales and their mothers whisper to each other when swimming through the ocean, according to a new paper published in Functional Ecology.

Why it matters: This is the first such discovery of humpback whales' communication patterns that reveals their ability to whisper to one another. Whispering is one way for the calves and mothers to avoid dangerous situations when they're in vulnerable positions — namely, low-volume communication is a strategic way for them to avoid killer whales looking for an easy meal.

How they did it: The researchers followed eight calves and two mothers for 48 hours each using detachable acoustic tags to record their communication. They captured recordings as the whales swam off the Australian coast.

One fun thing: They also captured what they interpreted as the calvesasking their mothers for more milk when they were hungry, described as sound like "two balloons being rubbed together."

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Uncertainty can be hard for humans. It drives anxiety, an emotion neuroscientists are trying to understand and psychologists are trying to better treat.

Why it matters: Under the threat of a virus, job insecurity, election uncertainty, and a general pandemic life-in-limbo that is upending school, holidays and more, people are especially anxious.

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  2. U.S.: Total confirmed cases as of 3 p.m. ET: 7,255,546 — Total deaths: 207,374 — Total recoveries: 2,840,688 — Total tests: 103,939,667Map.
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  5. Business: Remdesivir is good business for Gilead.

Trump pushes back on changes to upcoming presidential debates

Photo: Jim Watson, Saul Loeb/AFP via Getty Images

President Trump suggested Thursday that he'll resist any moves that could cut off candidates' microphones in the next debate if he continues to talk over his opponent and the moderator.

  • "Why would I allow the Debate Commission to change the rules for the second and third Debates when I easily won last time?" he tweeted.

The big picture: White House and campaign officials insist Trump is still committed to two remaining debates, despite fallout from Tuesday including poor reviews and discussions of new guardrails.

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