Dogs don’t follow the rules on larger animals living longer. A 70kg Great Dane is lucky to reach seven years, but a 4kg Chihuahua can live for 10 years or more.
A shepherd with his flock in the Netherlands.
Peter Nicolai
How do different species have sex? Medieval illuminated manuscripts contain some surprisingly varied depictions.
We know that lots of animals, maybe all animals, sleep. Cats, dogs, even worms and jellyfish sleep. But we still don’t know exactly why they started sleeping.
Marcella Cheng/The Conversation
Pond snails use things like rocks or the side of their aquarium as their bed, attaching themselves while they sleep. This might not seem very relaxing but their shells do hang away from their body.
Male Birds of Paradise have patches of super-black plumage that absorb 99.95 percent of light. New research identified their feathers’ microscopic structures that make them look so very dark.
Professor, Management and Organizational Studies, Huron University College and Coordinator of Animal Ethics and Sustainability Leadership, Western University