/channels/taxonomy/term/6516/all en /channels/channels/news/crocodile-evolution-rebooted-ice-age-glaciations-328615 <p>Crocodiles are resilient animals from a lineage that has survived for over 200 million years. Skilled swimmers, crocodiles can travel long distances and live in freshwater or marine environments. But they can’t roam far on land. American crocodiles (<i>Crocodylus acutus</i>) are found in the Caribbean and Pacific coasts of the Neotropics but they arrived in the Pacific before Panama existed, according to <a href="https://onlinelibrary.wiley.com/doi/10.1111/evo.14139">researchers from ºÚÁϲ»´òìÈ University</a>.</p> Tue, 16 Feb 2021 14:23:27 +0000 webfull 167933 at /channels /channels/channels/news/mcgill-led-research-unravels-mystery-how-early-animals-survived-ice-age-303012 <p>How did life survive the most severe ice age? A ºÚÁϲ»´òìÈ University-led research team has found the first direct evidence that glacial meltwater provided a crucial lifeline to eukaryotes during Snowball Earth, when the oceans were cut off from life-giving oxygen, answering a question puzzling scientists for years.</p> Mon, 02 Dec 2019 20:06:57 +0000 webfull 155986 at /channels /channels/news/study-oceans%E2%80%99-past-raises-worries-about-their-future-228777 <p style="text-align:left" align="center">The ocean the Titanic sailed through just over 100 years ago was very different from the one we swim in today. Global warming is increasing ocean temperatures and harming marine food webs. Nitrogen run-off from fertilizers is causing coastal dead zones. A ºÚÁϲ»´òìÈ-led international research team has now completed the first global study of changes that occurred in a crucial component of ocean chemistry, the nitrogen cycle, at the end of the last ice age. The results of their study confirm that oceans are good at balancing the nitrogen cycle on a global scale.<b> </b>But the data also shows that it is a slow process that may take many centuries, or even millennia, raising worries about the effects of the scale and speed of current changes in the ocean. Thu, 13 Jun 2013 19:11:51 +0000 webfull 97035 at /channels