Tiny bubbles talk photosynthesis.
- During photosynthesis, algae produces a symphony of little "pings."
- The sounds are produced by oxygen bubbles breaking away from the plants.
- Monitoring reef health through its sound is a new avenue for acoustic ecology.
Thanks to museum curators, there's no shortage of the stuff.
- It's just been discovered that whale earwax contains a record of a whale's sub-lethal stressors.
- It's generally agreed that cortisol is a reliable indicator of a mammal's response to stress.
- We now have a detailed 146-year impact study of human activity on whales.
New research identifies an unexpected source for some of earth's water.
- A lot of Earth's water is asteroidal in origin, but some of it may come from dissolved solar nebula gas.
- Our planet hides majority of its water inside: two oceans in the mantle and 4–5 in the core.
- New reason to suspect that water is abundant throughout the universe.
Protected animals are feared to be headed for the black market.
The next gold rush might take place in our sewers.
- Even though we think of it as exceedingly rare, gold can be found all around us.
- The trouble is, most of the gold is hard to get at; its too diluted in our waste or ocean waters to effectively extract.
- This new technique quickly, easily, and reliably extracts gold from most liquids.
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