The vilest instances of human cruelty are inevitably justified by their perpetrators as acts of self-defense.
Since then, instances of human safaris, sexual molestation, intoxication and exploitation of Jarawa resources have regularly been reported.
The past quarter century has witnessed the unprecedented establishment of international courts charged with adjudicating instances of human rights abuse.
Toltec-Maya art shows many instances of human sacrifice: removal of the heart, arrow shooting, or beheading.
Countries emerging from conflict often suffer weak or non-existent rule of law, inadequate law enforcement and justice administration capacity, and increased instances of human rights violations.
Although retroviruses can induce tumour development in animals, only a few instances of human proto-oncogenes' being mutated into oncogenes by retroviral insertion are known.
And shouldn't the Holocaust be studied not only in Europe, North America and Israel but throughout the world, alongside other tragic instances of human barbarism?
But geneticists, with information from the human genome now at their disposal, have begun to detect ever more recent instances of human evolutionary change like the spread of lactose tolerance in cattle-raising people of northern Europe just 5,000 years ago.
His smiles, too, were often triggered by instances of human vulnerability: a lie, an exaggeration, a lack of education on the part of a witness, or the defeat of his opponent in court.
