化石蛋壳显示 古代鳄鱼可能住在树上 从上面捕猎 不同于今天的物种 Fossil eggshells reveal ancient crocodiles may have lived in trees and hunted from above, unlike today's species.

昆士兰东南部五千五百万年前的化石蛋壳显示, 古代类鳄鱼可能是半arboreal(半arboreal), 可能是从树上捕猎, 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. 与现代鳄鱼不同,这些已灭绝的爬行动物生活在森林中,占据了不同的生态位置,栖息在湖边附近。 Unlike modern crocodiles, these extinct reptiles lived in forests, occupied diverse ecological niches, and nested near lake margins. 来自蛋壳微观结构和化石遗骸的证据表明，它们是陆生的，适应了陆地，并在 380 万年前现代鳄鱼到来之前繁衍生息。 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. 它们的下降与气候变化、干燥的地貌景观和竞争相关。 Their decline is linked to climate change, drying landscapes, and competition. 研究强调蛋壳是有关古老动物行为和环境的宝贵信息来源。 The study highlights eggshells as a valuable source of information on ancient animal behavior and environments.