Portal:Animals/Did you know/4


 * ...that the robin (pictured) has an average life expectancy of about one year, but has been known to live up to twelve years?
 * ...that the Zebra mussel, originally native to Russia, has spread to North America, the British Isles, Spain, and Sweden, where it is considered a nuisance because it can form colonies large enough to block pipelines?
 * ...that the Southern Giant Petrel is the leading predator to the Emperor Penguin, and may be responsible for up to 34% of chick deaths in some colonies?
 * ...that some goats freeze for ten seconds whenever startled due to the genetic condition known as myotonia congenita, and have thus been dubbed "fainting goats"?
 * ...that Eurasian badgers are believed to be partially responsible for the spread of bovine tuberculosis?