April 23, 2014
Detached retina of red-eared turtle (sp. Pseudemys scripta elegans), showing oil droplets located in the outermost inner segments of cone photoreceptors (400x) (via Detached retina of red-eared turtle (sp. Pseudemys scripta elegans), showing oil droplets located in | Brightfield | Nikon Small World)

Detached retina of red-eared turtle (sp. Pseudemys scripta elegans), showing oil droplets located in the outermost inner segments of cone photoreceptors (400x) (via Detached retina of red-eared turtle (sp. Pseudemys scripta elegans), showing oil droplets located in | Brightfield | Nikon Small World)

April 16, 2014
Human bone cancer (osteosarcoma) showing actin filaments (purple), mitochondria (yellow), and DNA (blue) (63x) 
(via Human bone cancer showing actin filaments, mitochondria, and DNA | 2012 Photomicrography Competition | Nikon Small World)

Human bone cancer (osteosarcoma) showing actin filaments (purple), mitochondria (yellow), and DNA (blue) (63x)
(via Human bone cancer showing actin filaments, mitochondria, and DNA | 2012 Photomicrography Competition | Nikon Small World)

April 12, 2014
Brittle stars are closely related to starfish. Their arms can be up to 60 cm (24 in) long, and they have specialized nerves on the ends of each arm that can detect light and the presence of certain chemicals.  (via Brittle star | 2012 Photomicrography Competition | Nikon Small World)

Brittle stars are closely related to starfish. Their arms can be up to 60 cm (24 in) long, and they have specialized nerves on the ends of each arm that can detect light and the presence of certain chemicals.
(via Brittle star | 2012 Photomicrography Competition | Nikon Small World)

April 9, 2014
Thin section of a dinosaur bone preserved in clear agate (10x) (via Thin section of a dinosaur bone preserved in clear agate | 2013 Photomicrography Competition | Nikon Small World)

Thin section of a dinosaur bone preserved in clear agate (10x) (via Thin section of a dinosaur bone preserved in clear agate | 2013 Photomicrography Competition | Nikon Small World)

August 21, 2013
Amoxicillin is a semisynthetic derivative of penicillin and an analog of ampicillin. (via Molecular Expressions Photo Gallery: Antibiotics - Amoxicillin)

Amoxicillin is a semisynthetic derivative of penicillin and an analog of ampicillin. (via Molecular Expressions Photo Gallery: Antibiotics - Amoxicillin)

February 24, 2012
Green microscopy dye (200x) (2000 - Ines Schlegel)

Green microscopy dye (200x) (2000 - Ines Schlegel)