Bridging this gap is the rapidly evolving science of animal cognition. We now know that pigs have the cognitive capacity of three-year-old humans; crows use tools and hold grudges; octopuses solve complex puzzles and exhibit play behaviors. The boundary between "human" and "animal" is dissolving.
(1906) by Upton Sinclair: While aimed at labor rights, its graphic depiction of the Chicago meatpacking industry horrified readers and sparked early food safety and animal treatment discussions. 3. Modern Investigative Tales Bridging this gap is the rapidly evolving science