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Posts Tagged "oxygen"

Guest Blog

Now in 3-D: The shape of krill and fish schools

Watching videos of fish feeding frenzies is a very emotional experience for me. You know the videos I’m talking about (personal favorites here, 0:55 in, and here). They feature a swirling, glittering mass of fish that seems to dance and flit as a single entity while being torn apart by three or four types of [...]

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New Extremophile Breathes Rocket Fuel


The energetic molecule perchlorate is rocket fuel and, it turns out, food for ancient microbes. Given that deposits of the stuff have been found wherever robots look on Mars, could the chlorine compound—poisonous to the development of humans—be serving as Martian life’s lunch? A team of Dutch researchers show in the April 5 edition of [...]

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Octopus Chronicles

Octopuses Survive Sub-Zero Temps Thanks to Specialized Blue Blood

octopus blue blood

Octopuses’ oddities run deep—right down to their blue-hued blood. And new research shows how genetic alterations in this odd-colored blood have helped the octopus colonize the world’s wide oceans—from the deep, freezing Antarctic to the warm equatorial tropics. The iron-based protein (hemoglobin) that carries oxygen in the blood for us red-blooded vertebrates becomes ineffective when [...]

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