skeleton: Quick Facts

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Last updated

Oct. 30, 2026

News •

75,000-Year-Old Neanderthal Skeleton Reveals a Mysterious Spear Wound Aimed at the Heart • Oct. 20, 2026, 3:00 AM ET (SciTechDaily)

Photos and Videos

vertebrate: skeleton

Diagram comparing the forelimb bone structures of a human, horse, dolphin, box turtle, fruit bat, and chicken, with color-coded bones showing homologous parts to illustrate evolutionary relationships.

This diagram traces the evolution of the horse from the small, multi-toed Hyracotherium (dawn horse) of the Eocene epoch to the modern single-toed Equus, showing changes in size, limb structure, and forefoot bones, with illustrations of key ancestral species to scale.

Diagram of a dog's skeleton in side view, showing labeled bones including the skull, spine, ribs, pelvis, scapula, humerus, radius, ulna, femur, tibia, fibula, and various vertebrae.

The top half of the diagram shows a labeled illustration of a horse skeleton, identifying bones such as the skull, vertebrae, pelvis, ribs, and limbs. The bottom half displays the external anatomy of a horse (Equus caballus), with labels for key body points including muzzle, withers, shoulder, back, flank, hock, and hoof.

Side-by-side anatomical illustration comparing the right leg of a modern human and a gorilla, showing labeled skeletal structures and major muscles including pelvis, femur, tibia, fibula, and key thigh muscles.

Side-by-side skeletal diagrams compare a modern human standing upright and a gorilla walking on all fours, with labeled bones and close-up views of the female pelvis for each species.

Illustration of a full human skeleton with all major bones shown in beige and cartilage highlighted in blue, overlaid on a faint outline of a human body.

Examine the differences in structure and function of endoskeletons and exoskeletons

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Topics

shell appendicular skeleton visceral skeleton bone joint human skeleton vertebral column Hip jaw cartilage blood Tissue heart fluid lymph abdomen lymphoid tissue Biomolecule nose bursa

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Key People

Belon, detail from an engraving

Pierre Belon

French naturalist

Marcellin Boule

Marcellin Boule

French geologist

full human skeleton

The Skeletal Puzzle

full human skeleton

The Skeletal Puzzle

Bones of the wrist and hand: dorsal view. skeletal system, human anatomy, appendage, hand bones, wrist bones, metacarpal bones, finger bones, phalanges.

Human Bones Quiz

Muscles of facial expression, human anatomy, (Netter replacement project - SSC). Human face, human head.

Characteristics of the Human Body

Male muscle, man flexing arm, bicep curl.

Facts You Should Know: The Human Body Quiz