Ancient Antarctica was once a cradle of life

For hundreds of millions of years, Antarctica was not a frozen wasteland but a temperate continent teeming with reefs, rivers, forests, and diverse animal life. It served as the linchpin of the supercontinent Gondwana, connecting what would become South America, Africa, India, Australia, and New Zealand. Paleontologist John Long, who has led multiple fossil-hunting expeditions to Antarctica, explains that the continent's fossil record stretches back over half a billion years — and that much of what we know comes from expeditions that were as dangerous as they were scientifically fruitful.

The heroic age and the birth of Gondwana

The serious collection of Antarctic fossils began during the heroic age of polar exploration. The expeditions of Robert Falcon Scott and Ernest Shackleton brought back the first significant specimens. Shackleton's team collected Cambrian-age fossils from the Beardmore Glacier region — rocks over 500 million years old that turned out to be part of a massive ancient reef called the Shackleton Limestone, built by sponge-like organisms called archaeocyathids. Tragically, Scott's ill-fated Terra Nova expedition also contributed: when their bodies were found in their polar tent, they were still carrying geological specimens and notebooks. Those fossil plants later proved crucial for establishing the concept