Being a motorcyclist since the early 70's, I have developed a sixth sense with traffic. I can tell even before I consciously see or hear a vehicle that its there. I have many deep narrow, windy lanes around me, and I always seem to "know" if a vehicle is coming towards me.
I use this sense in nature too. I notice so much more than a companion as we are walking and chatting. I'm not consciously looking or listening, but I hear and see stuff they don't, down to a tiny shoot on a bankside, or a bird in a tree or the sky.
I can sometimes connect with a completely unknown dog, and know things about it that only the owner would know, which amazes them, and is quite amusing sometimes.
In fact it happened today, with a nervous 8 month puppy, which within seconds was all over me. We had complete communication, and the lady couldn't believe it, as normaly it was very nervous of strangers. Its not every dog, but sometimes I just know what a dog is feeling or thinking.
I think there are many "other senses" its just that we are so busy or engrossed in TV or whatever that we do not connect with them in the automatic way that other creatures do. It needs practice untill it becomes automatic to connect and tune in with what's going on around you at all times, despite distractions of traffic, or other people.
It's so natural for me, and almost impossible to explain to others how it happens.
So many walk around eyes glued and ears plugged into a phone, it's no wonder people are loosing the ability to see and hear or feel anything.