Tag Archives: mammal

Untangling the branches in the mammal tree of life

Researchers have unveiled a complete overhaul of the way species data is brought together and analyzed to construct an evolutionary tree of life for mammals. It’s aimed at giving scientists, conservation managers, policymakers, and environmentalists more accurate, comprehensive information about … Continue reading

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Division by subtraction: Extinction of large mammal species likely drove survivors apart

A new study suggests that the extinctions of mammoths, dire wolves and other large mammal species in North America drove surviving species to distance themselves from their neighbors, reducing interactions as predators and prey, territorial competitors or scavengers. The discovery … Continue reading

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Long-lasting effects of ironwork on mammal distributions over the last millennium

Pre-modern energy-intensive industries have had long-lasting impacts on macro-ecological patterns. A new study revealed that the impact of pre-modern ironwork starting over 1000 years ago can still be seen in the distributions of small mammals in Japan today. The study … Continue reading

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Rukwa Rift Basin Project names new Cretaceous mammal from East African Rift System

Researchers announced a new species of mammal from the Age of Dinosaurs, representing the most complete mammal from the Cretaceous Period of continental Africa, and providing tantalizing insights into the past diversity of mammals on the planet. Paleontology News — … Continue reading

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Ancient mammal remains digested by crocodiles reveal new species

Fossilized bones that appear to have been digested by crocodiles in the Cayman Islands have revealed three new species and subspecies of mammal that roamed the island more than 300 years ago. Paleontology News — ScienceDaily

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20-million-year-old tusked sea cow is Central America’s oldest marine mammal

A researcher searching the shoreline of the Panama Canal for fossil plants instead found an ancient sea cow. An ’emergency fossil excavation’ due to rising water levels yielded a remarkably complete skeleton of a new genus and species of dugong, … Continue reading

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Gigantic mammal ‘cousin’ discovered

During the Triassic period (252-201 million years ago) mammal-like reptiles called therapsids co-existed with ancestors to dinosaurs, crocodiles, mammals, pterosaurs, turtles, frogs, and lizards. One group of therapsids are the dicynodonts. Researchers have discovered fossils from a new genus of … Continue reading

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Human ancestors not to blame for ancient mammal extinctions in Africa

New research disputes a long-held view that our earliest tool-bearing ancestors contributed to the demise of large mammals in Africa over the last several million years. Instead, the researchers argue that long-term environmental change drove the extinctions, mainly in the … Continue reading

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What makes a mammal a mammal? Our spine, say scientists

Mammals are unique in many ways. We’re warm-blooded and agile in comparison with our reptilian relatives. Paleontology News — ScienceDaily

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Mammal forerunner that reproduced like a reptile sheds light on brain evolution

Compared with the rest of the animal kingdom, mammals have the biggest brains and produce some of the smallest litters of offspring. A newly described fossil of an extinct mammal relative — and her 38 babies — is among the … Continue reading

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