Critic at Large

Opinion: Birds of a Feather?
Opinion: Birds of a Feather?

Taking into account the interaction of nuclear and mitochondrial genes in birds holds the promise of more objectively defining what constitutes a species.

Opinion: An Ethical Code for Conferences
Opinion: An Ethical Code for Conferences

This fundamental form of scientific communication is threatened by modern recording technology and researchers who refuse to adhere to an age-old ethical code. 

Opinion: Our Inner Caveman
Opinion: Our Inner Caveman

The modern human brain evolved in social and environmental settings very unlike today’s. Despite our cultural and technological progress, tribal instincts remain.

The Global Science Era
The Global Science Era

As international collaboration becomes increasingly common, researchers must work to limit their own biases and let cultural diversity enhance their work.

Pet Scans
Pet Scans

Studying tumor development and treatment in dogs and cats, in parallel with research on rodents and humans, could improve the successful translation of new cancer drugs.