Images

Common kestrels fighting
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Common kestrels fighting


The name "kestrel" is derived from the French crécerelle which is diminutive for crécelle, which also referred to a bell used by lepers. Archaic names for the kestrel include windhover and windfucker, due to its habit of beating the wind (hovering in air)

 



Fibonacci pigeons!
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Fibonacci pigeons!


 



This is a 10 000 000 000 000 000 000 000 000 000 000 000 carats diamond
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This is a 10 000 000 000 000 000 000 000 000 000 000 000 carats diamond


Two reasons why it's unavailable (for now): first, BPM 37093 is a star about to die, and we're talking about its cristallized carbon nucleus. Second, it's 50 light years away from earth.

 



Gene therapy
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Gene therapy


 



Hi, I'm the world's smallest known vertebrate!
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Hi, I’m the world’s smallest known vertebrate!


Paedophryne amauensis is 7.7 mm long. This frog from Papua New-Guinea was first described in 2012

 



The horsehead nebula, photographed by Hubble in 2013
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The horsehead nebula, photographed by Hubble in 2013


 



These are the oldest human blood cells: Otzi, 5300 years old
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These are the oldest human blood cells: Otzi, 5300 years old


The man found momified in the ice in 1991 is thought to have been killed by an arrow in the shoulder, at age 45

 



Horses are so last century: ride a moose instead!
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Horses are so last century: ride a moose instead!


Domestication of moose was investigated in the Soviet Union before World War II. Russia thought of using moose as pack animals as well as meat, skin and milk cattle. But "moose-farming" turned out not to be profitable enough

 



A space selfie, by Japanese astronaut Aki Hoshide
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A space selfie, by Japanese astronaut Aki Hoshide


Aki Hoshide immortalized a bright sunny day of 2012 during which he and NASA astronaut Sunita Williams (visible in the reflections of Hoshide's helmet visor) underwent a session of extravehicular activity outside the International Space Station

 



Naked mole rats can survive up to 18 mn without oxygen
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Naked mole rats can survive up to 18 mn without oxygen


Naked mole rats are the superheroes of lab animals. They show few signs of aging, are resistant to some types of pain, and almost never get cancer! But in 2017, scientists have discovered another superpower: they can live up to 18 mn without oxygen! They do that by essentially switching their bodies from using one fuel (glucose) to another (fructose)

 



Calcite displays some amazing optical properties
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Calcite displays some amazing optical properties


Calcite crystals occasionally show phosphorescence or fluorescence, but they are also display birefringence (or double refraction). This strong birefringence causes objects viewed through a clear piece of calcite to appear doubled!

 



A fern rhizome under a microscope
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A fern rhizome under a microscope


This is a vascular bundle of Pterídium aquilínum: it's basically the blood vessels of plants!

 



Swans can mate for life since they are 20 months old
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Swans can mate for life since they are 20 months old


Although swans only reach sexual maturity between 4 and 7 years of age, they can form socially monogamous pair bonds from as early as 20 months that last for many years, and in some cases these can last for life

 



The proboscius monkey is a great jumper
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The proboscius monkey is a great jumper


Nasalis larvatus is a reddish-brown arboreal Old World monkey with an unusually large nose. It is endemic to the southeast Asian island of Borneo

 



This is the reconstruction of René Descartes' brain
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This is the reconstruction of René Descartes’ brain


Using a state-of-the-art scanning system, a French team of researchers has successfully reconstructed Descartes' brain from the philosopher's skull. Their findings were published in the Journal of Neurological Sciences on July 2017