A side effect of these chemical reactions is a lot of heat. The fact that the chemical reactions in a fire generate a lot of new heat is what sustains the fire. Many fuels burn in one step. Gasoline is a good example. Heat vaporizes gasoline and it all burns as a volatile gas. There is no char. Humans have also learned how to meter out the fuel and control a fire.
Researchers just mapped their genome for the first time to find out. By Paca Thomas. Bowhead whales can live more than 200 years, and they rarely succumb to cancer or disease. Searching for clues about their longevity, researchers just mapped their entire genome. Watch more in the video above.
Among the whales lost was J2. At an estimated age of 105, she was the oldest southern resident killer whale. As part of photogrammetric studies of southern and northern resident killer whales, John Durban and Holly Fernbach of the National Marine Fisheries Service had noted that she looked thin in the early fall of 2016.