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
0
94
A team of paleontologists from Museo Argentino de Ciencias Naturales Bernardino Rivadavia, Consejo Nacional de Investigaciones Científicas y Técnicas and The Chinese University of Hong Kong, has identified a new species ...
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
2 hours ago
0
21
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
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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
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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
For centuries, civilizations have used naturally occurring, inorganic materials for their perceived healing properties. Egyptians thought green copper ore helped eye inflammation, the Chinese used cinnabar for heartburn, ...
Biotechnology
May 30, 2024
0
134
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
This text uses material from Wikipedia, licensed under CC BY-SA
