BIBLICAL & SCIENTIFIC ANSWERS

Was the mighty T. rex a warm-blooded reptile? That’s the claim of a new study, published in Science Advances. This study analyzed three fossil T. rex teeth from the Hell Creek Formation in Montana, comparing the results against an analysis of crocodile teeth from the same formation. A popular science article claims the results of the study “settles the debate” on the question of T. rex’s internal temperature, placing it at 97 degrees Fahrenheit. The article states: “This places T. rex’s internal temperature ahead of today’s cold-blooded reptiles and even sloths, but short of their avian descendants [birds], which range between 104 and 109 degrees Fahrenheit.”

What does it take to form a fossil of a footprint? Fossils of footprints and trackways are called “trace fossils”—the preservation of a creature’s behaviors or activities rather than the creature itself. There have been an abundance of trace fossils discovered over the years. For example: Last year, I wrote about a massive sauropod trackway uncovered in the UK; in that same year, I wrote about 66 footprints from 47 dinosaurs discovered in a boulder in an Australian high school foyer; and in 2024, I wrote about matching dinosaur footprints found on either side of the Atlantic Ocean.