Articles with 200-400 Words

Modern crocodiles are powerful, heavy reptiles. They spend much of their lives along riverbanks, waiting to ambush prey. But their ancient relatives looked and lived very differently. One example is Sonselasuchus cedrus (S. cedrus). This recently discovered crocodile species lived about 215 million years ago during the Late Triassic Period....

A tiny insect that lived about 100 million years ago has been given a name inspired by Stray Kids, a South Korean boy band. The newly described species, Carcinonepa libererrantes (C. libererrantes), dates back to the Cretaceous Period. This is the time when dinosaurs still roamed Earth....

Most ant colonies are built around a single queen that lays all the eggs. Around her, thousands of female workers build and maintain the nest, gather food, and care for the young. There is also a small number of males. Their only role is to mate with the queen before they die. However, Temnothorax kinomurai (T. kinomurai) follows a completely different strategy....

Astronomers have made a surprising discovery in the Kuiper Belt, a frigid region of space beyond Neptune. A small icy rock named 2002 XV93 has been found to have its own atmosphere. This is unexpected because the object is only about 310 miles (500 km) wide. That is about seven times smaller than our Moon. Usually, an object that small does not have enough gravity to hold onto gases. They simply drift away into space....