Hey … I’m singing here!
Noise pollution has been linked to plenty of negative outcomes, but the latest target is the poor baby zebra finch.
Researchers at the Max Planck Institute of Ornithology in Germany say traffic noise disrupts the timing of vocal development and impairs learning in the flying finches. The noise was also shown to suppress their immune systems, because of lingering stress.
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The good news is that the birds with noise-induced stress sang as much as their peers in a control group, so the delay in development “was not due to a lack of vocal practice,” according to researchers. However, one long-term effect could be that zebra finch birdsongs could change over time due to noise-induced copying errors. Imagine a really long game of birdsong telephone – the song at the beginning is unlikely to be the song years from now.
While not mentioned in the study, one could also imagine that due to all that exposure to traffic, young zebra finches could be developing a salty dialect and impatience with fellow finches taking up too much space on the same tree branch. Hopefully, they don’t give others “the bird.”
Slimy soap
Remember at the beginning of the pandemic when it was almost impossible to find sufficient hand-washing supplies? Just when you thought you’d tried everything, there is soap made from snail slime.
Snail slime, surprisingly, has many beneficial properties for humans. The slime has antiaging and skin healing properties and is actually used in some Korean beauty supplies. The snails even use the slime to help fix their shells if they become damaged.
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Happily, no snails are harmed in the slime extraction and making of the soap. Snail farmer Damien Desrochers says, “I only touch it with my finger, you see it’s not violent, it’s simple.”
As you can probably imagine, a lot of slime is needed to have a steady supply of this soap, so Mr. Desrochers has systems in place to get enough slime. Approximately 40 snails are needed to make 15 bars of soap, and he hopes to produce about 3,000 bars in the first year.
Nothing really surprises us anymore in the beauty world: People put eggs in their hair and bee venom on their skin, so what’s wrong with a little snail slime?