A worker honey bee’s brain is only a cubic millimeter in size, but it has the densest neuropile tissue of any animal.
Source: Department of Agriculture
Q: Did former President Barack Obama pardon Wendell Callahan, who was later accused of killing three people after his early release?
A: No. Congress unanimously passed a bill changing drug sentencing laws and Obama signed it. Callahan petitioned for early release under the new law and it was approved by a federal judge.