 Because of their large , heavy body size , the adults have no trouble eating prey as large as fully grown rabbits . When prey happens by , they strike with very fast precision from any angle . Once they strike their prey , they hang on to it with their large fangs rather than letting it go and waiting for it to die . This behaviour is very different from the behaviour of other species of vipers . These snakes feed on a variety of birds and mammals , such as doves , many different species of rodents , including field mice and rats , as well as hares and rabbits . There are also reports of more unlikely prey items , such as tree monkeys , the brush @-@ tailed porcupine ( Atherurus ) and even the small royal antelope ( Neotragus ) . 
 Because of their large , heavy body size , the adults <a href='got' title='1'><mark>have</mark></a> no trouble eating prey as large as fully grown rabbits . When prey <a href='uninflect' title='2'><mark>happens</mark></a> by , they strike with very fast precision from any angle . Once they strike their prey , they hang on to it with their large fangs rather than letting it go and waiting for it to die . This behaviour <a href='drop_aux' title='3'><mark>is</mark></a>very different from the behaviour of other species of vipers . These snakes feed on a variety of birds and mammals , such as doves , many different species of rodents , including field mice and rats , as well as hares and rabbits . <a href='dey_it' title='4'><mark>There</mark></a> are also reports of more unlikely prey items , such as tree monkeys , the brush @-@ tailed porcupine ( Atherurus ) and even the small royal antelope ( Neotragus ) . 
Bc of their large , heavy body size , the adults got no trouble eating prey as bigass as fully grown rabbits . When prey happen by , they strike w/ very fast precision from any angle . Once they strike their prey , they hang on to it with their large fangs rather den letting it go and waitin fir it to die . dis behaviour very different from da behaviour of other species of vipers . dese snakes feed on a variety of birds and mammals , such as doves , many different species of rodents , including field mice and rats , as well as hares and rabbits . It is also reports of more unlikely prey items , such as tree monkeys , the brush @-@ tailed porcupine ( Atherurus ) and even the small royal antelope ( Neotragus ) .