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Melatonin can slow down the effects of aging, according to a team at laboratoire Arago in Banyuls sur Mer (CNRS / Université Pierre et Marie Curie) who say that a treatment based on melatonin can delay the first signs of aging in a small mammal.

Better known as the ‘time-keeping' hormone, melatonin is naturally secreted by the body during the night. It is therefore a kind of biological signal for nightfall, allowing an organism to synchronize itself with the day/night rhythm.
The largest artificial underground cav in Israel has been exposed in the Jordan Valley in the course of a survey carried out by the University of Haifa's Department of Archaeology. Prof. Adam Zertal, who headed the excavating team, reckons that this cave was originally a large quarry during the Roman and Byzantine era and was one of its kind. Various engravings were uncovered in the cave, including cross markings, and it is assumed that this could have been an early monastery.

"It is probably the site of "Galgala" from the historical Madaba Map," Prof. Zertal says.
A toxic molecule implicated in cell damage and disease  may also be essential for bird migration, according to the University of Illinois. They propose the molecule superoxide as a key player in the mysterious process that allows birds to 'see' Earth's magnetic field.

Where we are born not only determines how we speak apparently how we taste food and drink, according to Andy Taylor, a researcher in flavor technology at The University of Nottingham and Greg Tucker, a food psychologist.

The taste preferences of the UK's major regions have been analyzed by the pair and Taylor of the Flavour Research Group said, "Taste is determined by our genetic make-up and influenced by our upbringing and experience with flavours. Just as with spoken dialects, where accent is placed on different syllables and vowel formations, people from different regions have developed enhanced sensitivities to certain taste sensation and seek foods that trigger these."

At the quantum level, the atoms that make up matter and the photons that make up light behave in seemingly bizarre ways.

Particles can exist in "superposition," in more than one state at the same time (don't look!), a situation that permitted Schrödinger's famed cat to be simultaneously alive and dead.  Matter can also be entangled', what Albert Einstein called "spooky action at a distance" in such a way that one thing influences another, regardless of how far apart the two are.
Human brains have tripled in size over the past 2 million years,  growing much faster than those of other mammals.

What might the reasons be for such dramatic brain expansion?

University of Missouri researchers studied three hypotheses for brain growth: ecological demand,  social competition and climate change.

Yes, climate change.   They're not stupid.   An entire presidential cabinet is stuffed with carbon dioxide true believers so it's good diplomacy to at least consider global warming may make us devolve - that would be terrific marketing for a carbon trading scheme.   Luckily, the much more likely social competition was determined in their analysis as the major cause of increased cranial capacity.