Researchers analyzed fossil data from 7 human ancestors, finding Australopithecus had strong arms but human-like leg pattern, while early Homo had stronger legs and weaker arms, suggesting a major shift in movement and living habits around 2 million years ago. This finding supports the idea that bipedalism evolved gradually, with early...
A major change in human ancestors' movement took place between 3 million and 1.8 million years ago, combining regular tree-climbing with walking on two legs. Early human ancestors like Australopithecus used trees as much as modern chimpanzees and gorillas do today, but when on the ground, they walked on two legs.
Researchers analyzed a skeleton with a severe knee injury to uncover the complexities of social attitudes towards individuals with disabilities in medieval Europe. The study found that despite negative cultural views, some individuals with disabilities received long-term care and prominent burials.
A study found that early Mesozoic animals, including dinosaurs, grew quickly around 230 million years ago. This feature is not unique to dinosaurs but was shared by several non-dinosaur reptiles as well.
Researchers at Imperial College London have designed a low-cost external fixator for broken bones, made from stainless steel and aluminium, which can be manufactured locally. The device has shown similar stiffness to commercial devices in cadaver leg bones and is being tested in Gaza, Sri Lanka, and Ukraine.
A new study found evidence that multituberculates, an extinct group of mammals, likely reproduced in a placental-like manner. This discovery questions the long-held idea that marsupials were less advanced than placentals in terms of reproductive strategy.
A new study suggests that the bones of fallen Battle of Waterloo soldiers were likely sold as fertilizer due to the scarcity of human remains found on the battlefield. The research, published in the Journal of Conflict Archaeology, is based on original data and visitor accounts from the time period.
Archaeologists have discovered that ancient chickens lived significantly longer than modern fowl due to their sacred status. Researchers used a new method based on the tarsometatarsal spur to estimate ages and found that over 50% of Iron Age bones were from birds aged over two years.
A study of 984 children found that consistent sport participators had significantly greater whole body and leg bone mineral content at age 20. Females who participated regularly also showed improved leg bone mineral content, highlighting the long-term benefits of childhood sports participation.
A new study suggests that human settlement of Jamaica may have led to the extinction of the Xenothrix mcgregori monkey species. The research uses radiocarbon dating to estimate that the monkey died between 505 and 573 A.D., overlapping with non-European human arrival on the island.
A study by Worcester Polytechnic Institute found that paralyzed patients lose mechanical strength in their leg bones faster than expected, putting them at greater risk for fractures from minor stresses. Early therapies are crucial to maintain bone mass and strength.
A study led by University of Manchester researcher Charlotte Brassey found that the leg bones of the tallest moa birds were similar to those of modern flightless birds that can run fast. The researchers used Finite Element Analysis (FEA) to estimate the weight and robustness of the moa, finding that different species had unique solutio...
Scientists used synchrotron X-ray imaging to study an ancient fossilized snake, revealing details of its internal architecture. The results suggest that snakes lost their legs due to slower growth rates or a shorter evolutionary period.