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Fossil eggshells reveal ancient crocodiles may have lived in trees and hunted from above, unlike today's species.
Fossilized eggshells from southeastern Queensland, dated to 55 million years ago, suggest ancient mekosuchine crocodiles may have been semi-arboreal, possibly hunting from trees like "drop crocs" rather than just from water.
Unlike modern crocodiles, these extinct reptiles lived in forests, occupied diverse ecological niches, and nested near lake margins.
Evidence from eggshell microstructure and fossil remains indicates they were terrestrial, adapted to land, and thrived before modern crocodiles arrived 3.8 million years ago.
Their decline is linked to climate change, drying landscapes, and competition.
The study highlights eggshells as a valuable source of information on ancient animal behavior and environments.
Las cáscaras de huevos fósiles revelan que los cocodrilos antiguos pueden haber vivido en los árboles y cazado desde arriba, a diferencia de las especies de hoy en día.