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More natural selection Warning: This joke has been classified by DeepLake Entertainment as a "rude" joke. It may contain foul language, sexual references or other obscene content. We consider these jokes suitable for adults only. If you're not an adult and read the joke anyway, please don't blame us if you get offended. Thanks, -The DeepLake Editorial Team. A herd of buffalo can move only as fast as the slowest buffalo and, when the herd is hunted, it is the slowest and weakest ones at the back that are killed first. This natural selection is good for the herd as a whole, because the general speed and health of the whole group keeps improving by the regular culling of the weakest members. In much the same way, the human brain can only operate as fast as its slowest brain cells. Excessive intake of alcohol, as we all know, kills off brain cells. Naturally, the alcohol attacks the slowest and weakest brain cells first. As a result, regular consumption of beer eliminates the weaker brain cells, constantly making the brain a faster and more efficient machine. More similar jokes: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 / 11 / 12 / 13 (Previous / Next) Cheap international phone calls from either the USA or UK. Excellent rates. Using the service supports this web site! USA Cheap International Calls | UK Cheap International Calls Get a new ringtone for your phone (UK only). Visit GetRingtonesNow.com for over 3,000 polyphonic and monophonic ringtones. Easy and fast ordering, full customer care.