1.   At their new fossil site, Smith and his colleagues also found a wide variety of fish, crabs, and a species resembling modern crocodiles.

2.   But the museum placard says that modern crocodiles leave similar nests containing both hatchlings and adults, even though crocodiles guard their young for only very brief periods.

3.   But two graduate students have challenged that idea, contending that the domestic lives of dinosaurs may not have differed much from those of modern crocodiles.

4.   During the Triassic geologic age, the dominant animals on Earth were massive reptiles, mostly four-footed ancestors of the modern crocodile.