For UC Berkeley Professor Jack Tseng, paleontology offers endless opportunities for discovery. Each new finding sheds light on the animals that roamed the earth millions of years ago. “If you look at books from 50 years ago, they postured dinosaurs very differently from the way we do it today,” says Tseng. He notes that scientific advancements have changed our understanding of these ancient creatures.
Fossils provide insights into our planet’s future amid climate change, according to Tseng. “The questions we ask of them have to do with how different species sometimes survive when others go extinct,” he explains. The extensive fossil record allows paleontologists to learn about Earth’s potential future by examining past extinctions and adaptations.
Recent discoveries have reshaped long-held beliefs about dinosaurs, including their speed and appearance. For instance, Tyrannosaurus rex was once thought to be a fast predator, but research suggests it likely moved at speeds no greater than 20-25 miles per hour. This revelation came from studying living bipedal birds like chickens and ostriches.
Paleontologists also rely on living animals to infer details about extinct species’ soft tissues, which are not preserved in fossils. “Paleontologists have to have one foot in the living world,” says Tseng, emphasizing the importance of studying modern animals’ biomechanics and movements.
Advancements in imaging technology and global research collaboration have transformed our understanding of prehistoric life. Findings suggest that some dinosaurs may have had feathers, altering their depiction in popular culture. “You will see… furry T. rex,” notes Tseng.
In addition to physical traits, researchers are exploring behavioral aspects of dinosaurs like T. rex potentially being scavengers rather than active hunters based on fossil evidence.
Tseng highlights the evolving nature of paleontology: “The dinosaurs are still the same dinosaurs, but the way we understand them as living animals has changed dramatically over the past several decades.”
A recent discovery in Siberia unearthed a saber-toothed cat mummy from the ice age, offering new information about ancient animal physiology through its preserved soft tissue.
Despite technological advances, fieldwork remains crucial in paleontology as researchers continue to uncover significant finds through traditional methods.
Paleontology also holds practical applications for addressing current challenges such as climate change by examining how past species adapted or went extinct under similar conditions.
Reflecting on humanity’s future impact on Earth, Tseng contemplates whether future paleontologists might view us as a species that coexisted harmoniously with other life forms or one that drove itself to extinction.
