Giant icebergs once scraped the seafloor near Britain, offering clues about ancient ice shelves and future sea-level rise.

Icebergs as large as cities, potentially tens of kilometres wide, once roved the coasts of the UK, according to scientists.

A recent study found a nearly complete skull in Antarctica that may belong to an ancient ancestor of ducks and geese called Vegavis iaai. This species lived around 68 million years ago.