CRISPR genome editing has been used to study the biology of a number of species, but its use in reptiles has been difficult to achieve. Scientists have now figured this out, and albino lizards are the product! Read Ben Andreone’s article to learn more! Continue reading Albino Lizards are the First Ever Genome Edited Reptiles
A study of the mouse brain found that a region involved in processing visual motion does not depend on the area thought to be the primary source of visual information, but rather a separate structure. While a similar discovery in the analogous region of primates has yet to be made, this suggests the presence of non-conventional pathways in sensory processing and highlights that, even in widely studied areas, there is still much to learn. Continue reading Double Vision: A Second Visual Pathway in Mice
by Michelle Frank figures by Abagail Burrus It’s a classic kindergarten icebreaker: which do you like better, blue or green? Would you rather wear pink or orange? What’s your favorite color? While these preferences might seem like markers of human personality, Homo sapiens aren’t the only animal to have a preferred hue. When given a choice, even insects show a preference for one shade of … Continue reading A Fly’s Favorite Color
Progressive blindness has been reversed in two patients with age-related macular degeneration, also known as AMD. AMD is a leading cause of blindness in people over 50. AMD damages the central portion of the retina, called the macula, which decreases vision over time, and can lead to blind spot formation. Phase 1 clinical trial results highlighting the effectiveness of a stem cell-based therapy were published … Continue reading Promising results for a treatment for blindness
In a rainbow, the shortest visible wavelength of light is approximately 400nm (blue) and the longest 700nm (red), where all others colors outside this range are invisible to humans.
Except not quite. Artal et. al. demonstrate that the eye’s visual acuity for infrared light (1000nm), is almost the same as for visible green light. The exploited effect in the eye converts two-invisible photons into a single visible one. Importantly, this demonstrated sensitivity to infrared light could enable future ophthalmic devices to help patients with eye conditions, such as cataracts, that make them opaque to visible light. Continue reading It takes two to see (infrared photons anyway)
The image above shows a developing zebrafish eye 3 days after fertilization. From this perspective, we are staring directly into the eye of the zebrafish and can appreciate both its beauty and its complexity. At this stage, the cells that comprise and surround the zebrafish eye display an incredible organization. The dark circle that appears to be a hole in the middle of the eye … Continue reading Perspective II
The image above shows a developing zebrafish eye 3 days after fertilization. From this perspective, we are staring directly into the eye of the zebrafish and can appreciate both its beauty and its complexity. At this stage, the cells that comprise and surround the zebrafish eye display an incredible organization. The dark circle that appears to be a hole in the middle of the eye … Continue reading Perspective I