The Fire Fly mini propane flame unit is great for applications that require a real flame effect. Available in 1/4 or 1/2 systems, the units provides a remotely cue-able column (or fireballs) of fire 6'-15' tall (depending on units used) with a host of safety features like positive flame recognition, pilot light sensing, and an emergency shut off valves.
Primates still do, but many, if not most, mammals do not. Horses, deer, cows and many other mammals have a reduced number of digits on their forelimbs and hindlimbs. Primates also retain other generalized skeletal features like the clavicle or collar bone.
This article discusses how horses use their five senses to interact with their environment. Animals, like humans, have five basic senses: vision, audition (hearing), olfaction (smell), gustation (taste), and touch. The senses are an important part of what makes horses behaviorally distinct. They are the tools that a horse uses to interact with its environment.