Universally accepted framework (UK Farm Animal Welfare Council, 1979):
The topic you've provided seems to touch on various aspects of animals in controlled environments, such as zoos and farms, and raises questions about the treatment and management of animals. Let's explore these themes with a focus on education, welfare, and ethical considerations. | LeDoux (1996) – Fear circuits
| Taxon | Evidence of Sentience | Key Study/Year | | :--- | :--- | :--- | | | Nociception, emotional lateralization, empathy, play, grief. | LeDoux (1996) – Fear circuits. | | Birds | REM sleep, tool use (corvids), episodic-like memory. | Emery & Clayton (2004) – Avian cognition. | | Cephalopods | Octopuses avoid pain, remember individuals, solve puzzles. | Cambridge Declaration on Consciousness (2012) – Signed by neuroscientists. | | Fish | Possess nociceptors, show fear/anxiety, learn avoidance. | Sneddon et al. (2003) – Pain in trout. | | Decapods (crabs) | Learn to avoid electric shocks, shelter-seeking after noxious stimuli. | Elwood & Appel (2009) – Pain in hermit crabs. | | | Cephalopods | Octopuses avoid pain, remember