Rats could one day be bigger than COWS: Super-size rodents will evolve as larger mammals become extinct, claims scientist
* Jan Zalasiewicz from Leicester University says rats will grow to 176lb
* ‘If ecospace was sufficiently empty, then they could get larger still,' he said
* A hint of the nightmare to come can be seen on ‘rat islands’ - isolated regions where rats have quickly risen to become the dominant species
* Gigantism is a evolutionary response that occurs when a small creature steps into an ecological niche left by a larger species
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http://www.dailymail.co.uk/sciencetech/ ... z2sV7UDA2n
http://www.smh.com.au/world/rats-could- ... z2sV76B5zh
http://www.theguardian.com/science/anim ... geological