rache an den dinosAs a self confessed palaeontology nerd, you will probably despair at the sight of the "Revenge on the dinos" T shirt. It took several decades to prove that a meteorite impact wiped out the dinos and then you find something like this. Aliens, pff. After all, we have the iridium deposits and the matching Chicxulub crater in Mexico as proof. But wouldn't an alien bomb leave the same marks? And, honestly, there's no other reason we haven't had any alien