Human blood is red but in certain situations it can be green, for example in the deep ocean.
The reason is quite simple, you can use the physics knowledge learned in school to explain. According to the knowledge learned, any object we see is due to light reflecting from it and entering our eyes. Objects that absorb other light spectrums, reflecting red light will appear red.
But the reality is a little more complicated, objects typically reflect a range of wavelengths of light. Blood absorbs most colors and reflects light primarily in the red spectrum, with a much smaller amount of green and blue light.
Meanwhile, ocean water appears slightly blue because it absorbs a lot of light at red wavelengths. At a certain depth in the ocean, enough red light is absorbed that only the blue light is reflected back to our eyes, which then appears green. Therefore, human red blood appears green at ocean depths.
Because red light is absorbed very well by water, many species of fish appear red when living at the bottom of the ocean.
At the bottom of the ocean, red and black animals predominate. This is because black animals absorb all available colors of light, while red animals appear black because they have no red light to reflect and their bodies absorb all other available wavelengths of light.
Tired of Microsoft Teams Error 2400 blocking your connection? Follow our proven, step-by-step fixes to solve "Unable to Connect to Servers" and get back to productive meetings fast.
Struggling to locate your Microsoft Teams recording? Discover exactly where Teams saves meeting files in OneDrive or SharePoint, plus quick steps to find and access them instantly. No more lost recordings!
Struggling with Microsoft Teams "Error G" audio? Discover step-by-step fixes for microphone and speaker issues. Quick, easy solutions to get back to seamless meetings without frustration. Works on Windows, Mac & more!
Tired of the frustrating Microsoft Teams Vcruntime140.dll missing error crashing your meetings? Discover proven, step-by-step fixes to resolve it fast and restore smooth teamwork. No tech skills needed!
Struggling with Microsoft Teams 'Undefined Error' (2026)? Discover proven, step-by-step fixes like clearing cache, updating the app, and more. Get back to seamless collaboration fast!
Discover simple, step-by-step methods to disable Microsoft Teams at startup and unlock better PC performance. Faster boot times, less resource drain—perfect for Windows users seeking smooth operation.
Stuck with Microsoft Teams "Network Error" offline? Discover proven, step-by-step solutions to fix Microsoft Teams network error offline quickly. Get back online fast—no tech skills needed!
Struggling with Microsoft Teams Error 4oggx? Discover proven fixes to resolve sign-in failures, crashes, and connectivity issues fast. Get back to productive calls without frustration!
Encountering the frustrating Microsoft Teams "Remove Account" Data Error? Discover quick, reliable fixes like clearing cache, resetting the app, and more to get back to seamless collaboration without losing data. Updated with the latest solutions.
Tired of the frustrating Microsoft Teams "Layout Error" Sidebar? Follow our proven, step-by-step troubleshooting guide with the latest fixes to get your Teams sidebar working smoothly again. No tech skills needed!
Stuck with Microsoft Teams offline error in 2026? Discover proven troubleshooting steps, common causes, and quick fixes to restore your connection fast. No tech skills required!
Tired of Microsoft Teams crashing with "Error M" memory issues? Follow our step-by-step guide to fix Error M in Teams, clear cache, update software, and boost performance—no tech skills required!
Discover the easiest step-by-step guide to setting up Microsoft Teams Town Hall events. Host massive virtual gatherings effortlessly with pro tips for seamless execution. Perfect for leaders and organizers!
Struggling with Microsoft Teams "Download Error" on PC? Discover proven, step-by-step fixes to resolve download failed issues quickly. Get back to seamless collaboration in minutes—no tech skills needed!
Stuck with Microsoft Teams "Error L" License error? Follow this step-by-step troubleshooting guide to resolve licensing issues quickly, restore access, and boost productivity without IT hassle. Updated with latest fixes.
