Monday, February 27, 2012

Foraging Behavior





Due to the fact that elephants are such amazingly large animals, they require a great deal of food to sustain themselves. Elephants can typically eat 330-375 pounds of vegetation a day. When you think about this in comparison to the amount of food humans typically eat a day (around 4.5-5 pounds), it’s absolutely mind-boggling! It comes as no surprise that elephant must spend the greater portion of their day (around 80%, or 16-18 hours) feeding themselves.
         Elephants are herbivores, meaning that they only eat plant life. They eat everything from leaves, grasses, fruits, small bushes, and many other types of foliage. One of their favorite things to eat is bark, because it is a good source or calcium and aids their bodies in digestion. In addition to the immense amount of food that elephants consume daily, they also need to drink anywhere from 18-26 gallons of water daily. Male elephants have the capacity to drink 55 gallons of water in less than 5 minutes! Again, comparing this amount to how much water humans should drink daily (less than a gallon) definitely puts this amount in perspective. Interestingly, elephants have also been known to tear up soil with their tusks, which they then place in their mouth. This is to obtain minerals and salts that they aren’t obtaining from their herbivore lifestyle.
         As previously discussed in this blog, elephants use their trunks for a wide array of purposes. Feeding is one of the trunks most important functions. The elephant can slough bark of trees using its’ tusk, and then use its trunk to pick the bark or other foliage up and place it in its mouth. Furthermore, elephants use their trunks to suck up water, which they then spray in their mouths. This is part of the reason that elephants have such a great capacity for drinking immense amounts of water so quickly. 



http://www.seaworld.org/animal-info/info-books/elephants/diet.htm
http://wiki.answers.com/Q/How_many_pounds_of_food_does_the_average_person_eat_each_day
http://www.tenan.vuurwerk.nl/reports/eversdal/grade6.htm


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