But it does get the job done. Specifically, this is the call of the horny male koala—and this sound is such an effective mating technique that simply hearing it can cause female koalas to go into heat. (Insert your own Koala Justin Bieber joke here.) Scienceline explains the importance of koala "bellowing":
The timbre of a koala's bellow seems to have something to do with its size, age and androgen (a sex hormone) concentration. Older males bellow more, bigger males bellow longer, and those with more androgen have deeper bellows. One study found that when the male koala is 2-4 years older than the female, the mating is more likely to be successful, leading some to suggest that females use male calls to gage their relative sexiness.
A new definition of kilogram went into effect today. No longer is the kilogram defined by Le Grand K, a 140-year-old weight under glass in a secret location near Paris. Now it’s determined by the Planck constant, based on physicist Max Planck’s theory that “electromagnetic energy at a given frequency could only be emitted in […]
Here’s the first 14 of 100 proofs that the Earth is a globe, with the rest still to come author David Morgan-Mar. [via] 1. The Blue Marble The most straightforward way to check the shape of the Earth is to look at it. There’s one small problem, though. To see the shape of the Earth […]
Last month, Israeli non-profit SpaceIL’s Beresheet probe made it to the lunar surface but sadly it wasn’t a soft landing. Beresheet was the first private attempt at a lunar landing and they got pretty damn close. A couple weeks after the crash, NASA’s Lunar Reconnaissance Orbiter orbited over the area and NASA has released images […]
Heads up: The clock is winding down on a free-entry contest to win not only one of the best smartphones on the market but a handy pair of earbuds. A simple sign-up is all you need to be eligible to win a 256 GB iPhone XS Max, along with AirPods. And while “free” is tough […]
Kudos to those of us who have chosen a less wasteful third option to “paper or plastic” at the supermarket or club stores. Tote bags are reusable, but they can be a pain to tote around. Here’s an upgrade to that planet-saving measure. The Club Cart Lotus Trolley Bag is that rare tote you’ll want […]
Looking for a career in IT, gaming or software development? In the ever-changing world of the internet, versatility is your biggest asset. In other words, mastering Java might not cut it in an interview if you don’t know C#. However, there’s a bundle that covers the essentials in most any language. The Legendary Learn to […]