During photosynthesis, trees convert the carbon dioxide to sugars and in doing so produce oxygen as a biproduct, which is vital for life on Earth. “Trees draw carbon dioxide out of the atmosphere and ...

Regular Tet Zoo readers will recall the article from March on ratite and tinamou evolution. Ratites, just in case you don't know, are the flightless kiwi, ostriches, rheas, emus and so on, while ...