Science News Roundup: Scientists calculate Earth's Ice Age and Fossil embryo dubbed the 'small giant' packs surprise

Scientists on Thursday said the fragile fossil is among the best-preserved dinosaur embryonic remains ever found - a nearly intact skull about 1.2 inches (3 cm) long that has remained three-dimensional rather than being flattened during the fossilization process.

Following is a summary of current science news briefs.

How low did it go? Scientists calculate Earth's Ice Age temperatures

Guided by ocean plankton fossils and climate models, scientists have calculated just how cold it got on Earth during the depths of the last Ice Age, when immense ice sheets covered large parts of North America, South America, Europe, and Asia. The average global temperature during the period known as the Last Glacial Maximum from roughly 23,000 to 19,000 years ago was about 46 degrees Fahrenheit (7.8 degrees Celsius), some 13 degrees Fahrenheit (7 Celsius) colder than 2019, the researchers said on Wednesday.

Fossil embryo dubbed the 'small giant' packs surprises about a big dinosaur

The skull of a dinosaur embryo from Argentina is providing surprising details about baby facial features present in one species from an important dinosaur group called titanosaurs that included the largest land animals that have ever lived on Earth. Scientists on Thursday said the fragile fossil is among the best-preserved dinosaur embryonic remains ever found - a nearly intact skull about 1.2 inches (3 cm) long that has remained three-dimensional rather than being flattened during the fossilization process.