Got back into Isometrics lately doing the Self Resistance style pitting muscle against another muscle so I can put on some definition. This is mostly due to changing things up and getting my mind out of boredom. No I'm not giving up on my animal exercise but I might tone it down to a few times a week instead of everyday because as much as I love it I get bored easily.
Making a certain method an integral part in your training can possibly enhance your strength and conditioning so that's where the Isometrics come in. It hits your muscles from a static position with max effort or at near max effort. Most don't realize that this particular method is one of the most difficult to concentrate on because unlike moving your body or a weight, your focus needs to be on point of the muscles you're pushing or pulling. Next to Sprints, Isometrics are the next best thing to burning off fat and building dense muscle plus being able to do it wherever you want.
Doing Animal movements can be taxing so its important to know when to back off and keep your joints healthy and your tendons strong. Some animals you can do everyday but a number of them require jumping or brachiating and that is something to watch out for if you're not used to it. Its fun as hell but you got to protect your body too. I took a day off of animal stuff due to some crazy weird thing with my right foot, just walking on it felt like a crowbar hit it so I stepped back but didn't stop training, just went a different route.
Animals do Isometrics too but not like us humans where we are so damn analytical; animals use a natural state of it to survive in some cases like the Sloth when he holds on to a tree branch; you know how much strength you need just to hold in that position for a period of time? Its crazy. The big cats when they stretch, they flex every muscle in their body, ants hold up to 50x their body weight as they carry food to their home; that's pure isometric strength there.
Do some Isometric Exercise and you can't go wrong.