Woolly mammoths are evocative of a bygone era, when Earth was gripped within an Ice Age. Current knowledge places early mammoth ancestors in the Pliocene (2.58–5.33 million years ago, Ma) before their populations expanded ...
There's a longstanding debate simmering among biologists who study porcupines. There are 16 porcupine species in Central and South America, but only one in the United States and Canada. DNA evidence suggests North America's ...
Evolution
May 28, 2024
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94
An important chapter of the history of human occupation on the coast of Brazil is being rewritten by Brazilian researchers affiliated with the University of São Paulo's Museum of Archaeology and Ethnology (MAE-USP).
Archaeology
Jun 18, 2024
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41
Archaeologists have been investigating human bones found near the ruins of a bridge in the Three Lakes region of Switzerland. They seek not only to discover what took place, but also to better understand the Celtic heritage ...
Archaeology
Jun 17, 2024
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80
After analyzing the remains of 64 ancient sacrificed individuals, most of whom were children, researchers have revealed new details about human sacrifice at the ancient Maya site of Chichén Itzá.
Archaeology
Jun 16, 2024
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88
New Curtin University-led research has identified 100-million-year-old fossilized bones discovered in western Queensland, Australia as belonging to a newly identified species of pterosaur, which was a formidable flying reptile ...
Paleontology & Fossils
Jun 12, 2024
0
320
A team of archaeologists affiliated with multiple institutions in Spain has used a new dating technique to more accurately estimate time differences between Paleolithic Age hearth fires. In their paper published in the journal ...
Nuclear pore complexes (NPCs) are channels composed of multiple proteins that ferry molecules in and out of the nucleus, regulating many critical cellular functions, such as gene expression, chromatin organization and RNA ...
Cell & Microbiology
Jun 6, 2024
0
8
The identity of a local prehistoric marine reptile has finally been revealed after experts discovered that some of its remains actually belonged to fish.
Paleontology & Fossils
Jun 5, 2024
0
62
50,000 years ago, North America was ruled by megafauna. Lumbering mammoths roamed the tundra, while forests were home to towering mastodons, fierce saber-toothed tigers and enormous wolves. Bison and extraordinarily tall ...
Evolution
May 31, 2024
2
977
Bones are rigid organs that form part of the endoskeleton of vertebrates. They function to move, support, and protect the various organs of the body, produce red and white blood cells and store minerals. Bone tissue is a type of dense connective tissue. Because bones come in a variety of shapes and have a complex internal and external structure they are lightweight, yet strong and hard, in addition to fulfilling their many other functions. One of the types of tissue that makes up bone is the mineralized osseous tissue, also called bone tissue, that gives it rigidity and a honeycomb-like three-dimensional internal structure. Other types of tissue found in bones include marrow, endosteum and periosteum, nerves, blood vessels and cartilage. There are 206 bones in the adult human body and 270 in an infant.
Functions Bones have ten main functions:
Mechanical
Synthetic
Metabolic
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