I think Hinduism has many forms and sub-groups. I dont think it is only about rats and monkeys. There is a scientific branch and philosophical branch which goes even in the direction of monotheism as they also believe there is "ONE GOD" beyond everything or ultimate origin of the Universe.
I think there is some science based on old hinduism like ayurveda, yoga, and medicine just like there is ancient chinese medicine.
I was contacted by a indian couple who are the founders of deep origin and lots of people with Phd and such, and they also have Phd he and his wife. They dont only preach "religion" but also research ancestry and such.
I received as gift a tree of life, dont know if that is really a hindu symbol. it has some protective and healing "chakras" on it. Now I think it might be a bit of a scamm too as they always want that I buy something in their store, but they also provide some informations. And they have half a million followers. To me this is more like a philosophy then a religion. I dont know if it is hinduism but it is based on oriental philosophy.
https://i.ibb.co/k1bBhyc/IMG-3242.jpg
https://i.ibb.co/yk9kNM8/IMG-3240.jpg
https://www.facebook.com/ProjectYourself/