Thôi hỏng rồi

-----

Parasites (kí sinh trùng) have been discovered in a 200 million-year-old fossilized poo (phân hóa thạch).

Researchers have found that one of the earliest predators (kẻ săn mồi) on the planet was infested with (bị nhiễm khuẩn) roundworm (giun tròn), also known as nematodes (giun tròn), among multiple other parasites.

The poo — or coprolite (phân bị hóa đá), as fossilized feces is known to paleontologists (nhà khảo cổ học) — is believed to have belonged to a species of semi-aquatic phytosaur, a crocodile-like predator (kẻ săn mồi thuộc giống cá sấu).

The news comes less than a month after another team of researchers revived a prehistoric (thời tiền sử) worm, the long-extinct species Panagrolaimus kolymaensis, found dormant within the icy Siberian permafrost (băng vĩnh cửu) in a state of 'cryptobiosis.'

In the new study, a portion of the 2.91-inch-long ancient poo was analyzed by a team of researchers from Mahasarakham University, Thailand, who discovered five kinds of parasitic remnants, each around 50-150 micrometers long.

The group sliced open the parasitic egg fossils with a diamond saw 'using a standard thin section method,'