Ychydig o bethau sy'n rhoi mwy o saib i bobl nag i ddyn frathu bod dynol arall. Mae'n gysefin, gweithred sylfaenol sy'n atgoffa ein rhywogaeth o darddiad anifeiliaid. Mae hefyd yn digwydd bod yn un o arbenigeddau chwaraewr pêl-droed Uruguay, Luis Suarez, sydd â cheg yn llawn dannedd gwyn a blas honedig ar gnawd dynol.
Ar ôl y pencampwyr teyrnasu methodd Sbaen â chymhwyso heibio i gamau'r grŵp, a Ghana eu cyhuddo o osod gemau, roedd yn ymddangos fel y 2014 Mae'n bosibl na allai Cwpan y Byd Fifa fod yn llawer rhyfeddach – yna ymddangosodd Luis Suarez i brathu amddiffynnwr yr Eidal Giorgio Chiellini.
During a match against Italy, it looked as if the Uruguayan player head-butted Chiellini. But he has since been accused of biting after the Italian pulled down his shirt to show deep teeth marks.
If a Fifa investigation proves the bite happened, it will be the third time that Suarez has attacked a fellow player in this way. Y llynedd, he got a taste of Chelsea defender Branislav Ivanovic’s arm.
In November 2010, during a clash between Ajax and PSV Eindhoven players, Suarez bit Feyenoord midfielder Otman Bakkal on the neck. But he is not the first player to sink his teeth into another opponent.
Above is our run down of athletes pictured looking completely harmless – followed by a shot of them appearing to take a bite into their opponents when tournaments get heated.