Ectotherms are those animals whose body temperature increases and decreases along with the temperature of their surroundings. Examples are reptiles, amphibians. Ectotherms such as lizards, snakes regulate their body temperature not by producing metabolic heat but they follow other ways. One such way is by going into sleep, winter sleep (hibernation) and summer sleep (aestivation).
Because Africa is such a hot continent, lots of water gets dried up and evaporate. If we could have a better irrigation system and use rivers from around the continent, Africa could potentially start farming with the water they gain from the improved irrigation system.
