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Welcome to the National Zoo

Welcome to the National Zoo

Related:  BIBiology, Ecology, Life Science

100 Very Cool Facts About The Human Body The Brain The human brain is the most complex and least understood part of the human anatomy. There may be a lot we don’t know, but here are a few interesting facts that we’ve got covered. Nerve impulses to and from the brain travel as fast as 170 miles per hour. Ever wonder how you can react so fast to things around you or why that stubbed toe hurts right away? It’s due to the super-speedy movement of nerve impulses from your brain to the rest of your body and vice versa, bringing reactions at the speed of a high powered luxury sports car.The brain operates on the same amount of power as 10-watt light bulb. Merlin Bird ID app – Instant Bird Identification Help for 400 North American birds About Photo ID Help us test Merlin Bird Photo ID The Cornell Lab of Ornithology and Visipedia are collaborating to develop computer vision technology to identify birds in photos. Help test our new tool! Note: Merlin Bird Photo ID does not work on tablets or mobile devices at this time. For best results, please use a computer with a recent version of Chrome or Safari.

Invertebrates at the National Zoo Invertebrates are the most abundant creatures on earth, crawling, flying, floating, or swimming in virtually all of Earth's habitats, from townhouses to tropical rainforests. Yet most of us rarely notice them unless they're in our gardens or on our dinner plates. Invertebrates—creatures without backbones—are nature's unsung heroes, quietly playing vital roles in earth's ecosystems. About 99 percent of all known living species are invertebrates. Vertebrates—fish, amphibians, reptiles, birds, and mammals—make up a tiny fraction of life on earth. more about the silent majority Evolution Games, Labs, Acivities Evolution Living things change over time! Learn about and review the mechanisms that cause genetic change in populations, as well as several lines of evidence for change over time. Also, explore how organisms are classified into groups and named. Evolution Video Games, Virtual Labs & Activities

Our Secret Universe From head to toe, your body is completely made up of cells. Every single cell has a specific job that, working with other cells, keeps you functioning - maintaining your heartbeat, enabling to you digest your food and allowing you to sense the world around you. Fibroblast cells function is to keep us from falling apart. They produce connective tissue that holds all your muscles, skin and organs together. They're also central to growth and healing - in fact they are what creates scar tissue in place of destroyed skin cells. Despite their range of functions, all animal cells have a few core characteristics in common. Ornithos Atlantic Rainforest Webcam World Land Trust uses cookies to make all features of the website work effectively, and they are essential if you wish to donate online. Some cookies on this site are essential, and the site won't work as expected without them. These cookies are set when you submit a form, login or interact with the site by doing something that goes beyond clicking on simple links. We also use some non-essential cookies to anonymously track visitors or enhance your experience of the site. If you're not happy with this, we won't set these cookies but some nice features of the site may be unavailable. By using our site you accept the terms of our Privacy Policy.

Discover The Forest Start Your Own Adventures... The forest and the outdoors are a place for adventure, learning, fun, and discovery! There are so many possibilities. It might be tough deciding where to begin. Check out these games and activities, which can help get you going. Forest Snapshot Game Get behind the lens and take photos of your favorite forest friends in their natural settings. Great Cats The Great Cats exhibit on Lion/Tiger Hill features Sumatran tigers and African lions—living, breathing, roaring great cats. They are ambassadors for their wild relatives, and for the Zoo's conservation and science initiatives for tigers, lions, and many other cats, which, even if not great in size, are still great! Lions and tigers are on exhibit between 10 a.m. and 4 p.m., daily (weather permitting). Lion Update: March 24, 2014 These last two weeks have brought some new and exciting experiences for our lion families! Naba allowed her 8-week-old cubs to meet their aunt Shera at a mesh "howdy" door.

Concept Cartoons These concept cartoons were developed by Dianne Anderson and Kathleen Fisher (2002) as prompts for eliciting discussion about ideas in evolution. They can also be used as assessment tools. The cartoons are best suited for college non-majors and pre-college classes. Butterfly Life Cycle: Article with Lots of Pictures Bees in Hive The Butterfly Life Cycle Let’s explore a butterfly’s life cycle in detail, including all four stages of life. All butterflies have "complete metamorphosis."

Related:  Science