Coelacanths are difficult to classify. They have many characteristics in common with sharks, and yet in certain characteristics they more closely resemble other types of fish. In this activity, you ...

A paleobiologist's study reveals that the tails of fish and the tails of tetrapods, or four-limbed animals, are entirely distinct structures, with different evolutionary histories. Despite their ...

The argon plasma jet (Ar-PJ) is widely used in medical fields such as dermatology and dentistry, and it is considered a promising tool for cancer therapy. However, the in vivo effects of Ar-PJ for ...