Mutant butterflies of Fukushima.

Tecca reports on the 50 percent mutation rate in insects near the nuclear site:

Tens of thousands of residents were displaced and officials assured the world that the release of harmful radiation posed little threat. Now a new paper published in Scientific Reports has found that this is likely far from the truth, as at least one species of butterfly from the surrounding area has suffered major damage stemming from radiation exposure.

Butterflies affected by the radiation have suffered genetic damage resulting in malformed wings, legs, antennae, and eyes. In addition, their trademark spotted markings have completely disappeared as the mutation rate has increased.