If the purr is higher pitched, especially towards the end of the purr, and if your guinea pig looks tense, it is most likely stressed or annoyed. This long squeal is often loud and mixed with a ...

We've taken pictures of it from space! We know there are many countries, some far away, and that there are lots of different people. But for thousands of years people didn’t know this.

As you can see, someone reporting that she has a "gluten allergy" actually may have any one of a bunch of different conditions. Still, there's one unifying factor in all five of these gluten allergy ...