When the Bald Eagle population started to decline in the mid-20th century, scientists began to ask why. Population ecology, the study of organisms of the same species, played a big role in answering that question. In this episode of...

Howcast - Learn why more beauty products aren't organic in this Howcast video featuring Alegre of Green and Greener.

It describes the role of biological agents for controlling pests. It describes genetically modified organisms (using Bt microbe) and their uses as biocontrol agents.

Ophelia the opossum and Lollipop the skunk get their first try on a huge running wheel. Do they like it? Will they be able to use it?

Hank wraps up the Crash Course on ecology by taking a look at the growing fields of conservation biology and restoration ecology, which use all the kung fu moves we've learned about in the past eleven weeks and apply them to protecting...

If being alive on Earth were a contest, humans would win it hands down. We're like the Michael Phelps of being alive, but with 250,000 times more gold medals. Today Hank is here to tell us the specifics of why and how human population...

Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism and parasitism are...

Wai Lana Insights reveals the heart of the yoga lifestyle, making timeless, practical wisdom accessible to everyone. “As expected, the early cherry blossoms appear in March. Blooming tree after tree …”

Working with Python Modules: platform module<br/<br/>>

This clip is from the chapter "Working with Python Modules" of the series "Complete Python Scripting for Automation".You will learn about platform module and getpass module.

In this episode we will have a general look at the Greek Archaic Age of discovery and colonisation.

In this video we look at a few keys words that you will come across throughout ecology. An ecosystem is made up of all of the communities that live in it, every single organism from small to big and lots of environmental factors like...

What's the next wave of the technology revolution? How will it affect business and society?

Community ecology is the study of interactions between different species of living things, and lets ecologists examine the effects of predator-prey relationships, parasites, and mutually beneficial interactions. In this episode of Crash...

In this video you will learn how weird and wonderful animals are formed in the process of speciation and the formation of new species. Different selection pressures select for different characteristics. Over generations, the individuals...

Howcast - Learn how to make your own laundry starch in this Howcast video featuring Alegre of Green and Greener.

When a plant or animal species that once lived stops existing entirely, we say that that species has become extinct. Why do certain species of plants and animals sometimes become extinct? According to the theory of evolution, individuals...

Paul Andersen explains how biology is ordered in the hierarchy of life. He first of all describes how emergent properties appear as you move to more inclusive systems. The then describes life at the following levels; atom, molecule,...

Paul Andersen explains the differences between an r and a K selected species. He starts with a brief description of population growth noting the importance of; r or growth rate, N or number of individuals in the population, and K the...

Hank shares news about two unusual animals in crisis: the saiga, which have lost about half of their total population in the past month, and the smalltooth sawfish which has been found to reproduce in the wild, without sex.

In this video, the teacher covers key concepts related to communities in ecology. They discuss how different populations interact within a community, the role of limiting factors in population dynamics, and the importance of tolerance in...

This video presents an overview of the impact of human activities such as land use, infrastructure, farming, quarrying, and waste disposal on the environment, particularly on biodiversity. The narrator discusses how the global human...

The video is a lecture presentation on the human impacts on biodiversity. The presenter discusses how common human activities, such as fishing and farming, can have unforeseen consequences that reduce biodiversity. They explain the...

Biodiversity is the variety of life. There are thought to be 8.7 million species on planet Earth. And, as we saw in this video, biodiversity is of utmost importance to humans. The loss of one key species can have a detrimental impact on...

Saving power is important, especially on mobile devices and laptops. Every CPU has a built-in feature to shut down different parts of a computer to reduce power needs. It's up to the techs to make sure the power management settings are...