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 1146
Split thorn of a bullshorn acacia, revealing a nest of its ant mutualists.
 1942
Calico Lobster
 686
Comparison of compact and spongy bone.
 1298
Actions of flexors and extensors.
 4758
The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
 123
Taste Receptors
 1410
Evolution of Primate Species
 1486
A treatment for blocked blood vessels.
 649
The Scientific Method and Atmospheric Science
 928
The base of the human cranium is more flexed than the base of the chimpanzee cranium.
 2578
Human immunodeficiency virus gains entry into helper T cells, uses the cell DNA to replicate, interf
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Dialysis machine showing diffusion of concentrations, which are the same, between the patient’s ...
 881
Facial Expressions in a New Guinea Tribesman
 780
Features of the skull of archaic Homo sapiens.
 3446
Needle and Thread
 186
Cross section of the wrist showing tendons and nerves involved in carpal tunnel syndrome.
 1621
A person with a defective "P" gene might only have it effect the EYES
 128
The Müller-Lyer Illusion
 467
Muscles Spindles.
 2437
Toucan uses beak to keep it cool
 547
Fossils of hand and foot bones of Homo naledi
 322
Physical Activity Pyramid
 7649
Examples of epithelial tissue.
 6730
The ovarian and uterine cycles in a human female.
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When you're crazy about science
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From Wheat Kernel to Flour
 3811
The Reticular Activating System and Related Regions in the Brain Are Important Areas of Focus for D
 1224
A large female tiger shark (Galeocerdo cuvier)
 766
Features of the skull of anatomically modern Homo sapiens.
 12439
Diabetes mellitus. The metabolic disease diabetes mellitus, with symptoms of polydipsia, polyuria, a
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From left to right: Size development, biometrical changes in the cranium, reduction of toes ...
 1128
The beautiful blood vessels of the human body
 1100
Salivary glands
 581
The retrograde amnesia and anterograde amnesia associated with a concussion-producing blow to the ...
 8638
Examples of sensory receptors in the skin of mammals.
 613
An X-ray of arthritic joints of the wrist and hand.
 22013
Parenteral medication administration. The angle of needle insertion for four different types of pare
 1306
Tiger quoll sleeping at the window of the nocturnal animals exhibit at Sydney Wildlife World
 249
How Petroleum is Refined
 5572
Wheat field versus lavender field
 1912
Bacon Facts
 579
Alzheimer’s medications work by intensifying the effect of acetylcholine at the receptor.
 1617
The span of Homo sapiens sapiens’ time on earth
 1429
Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven
 2033
Baby Gorilla versus Baby Human
 1575
White blood cells
 1204
Mosquito Larva and Parasite
 951
Floor Pattern
 658
Classification of open injuries.
 1187
To keep the foot under the center of gravity, the biped’s femur is angled from hip to knee. The quad
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