Providing sufficient energy to seven billion increasingly affluent humans without burning up the planet may be humanity's greatest challenge.
He pitied his torturers as fellow humans, without forgiving them their deeds.
"In the end, as humans without animals, we will die from loneliness of the soul," Vasiliv said.
"Can you just open the door, so that we can talk like humans, without the frickin' mustache?" "The what?" "The . . .
Studies of the Reston strain had shown that the virus can be passed to healthy humans without resulting in illness.
Aging-rate tests could help scientists evaluate possible anti-aging compounds in humans without prohibitively long studies.
They see any news about New York birds as good news, especially if it manages to depict the city's bird-obsessed humans without making them look too weird.
The goal, PPL said, is to create genetically altered pigs whose organs can be transplanted into humans without being rejected by the human immune system.
Perhaps you're an Australian cricketer confused about how we can go from monkeys to apes to humans, without the need for pyramid-building aliens?
These cells can differentiate into various body cell types, enabling researchers to study disease at this level and in the correct species (humans) without using animals.
But in the future, some version of malaria could surge through a population of humans without the cultural knowledge or pharmaceuticals necessary to defend themselves against it.
