Half-a-Billion-Year-Old Spike-Covered Creature Discovered
When animals come across a awful marauder , their first instinct is to fly the coop and conceal . There are , however , some clear-cut setbacks to this tried - and - tested method : The prey has to be fast than its marauder , for model . For those that are n’t , a smarter defense strategy may evolve . The armadillo has its bony armor and the hedgehog can ram its calamus into predators ....