The body can get a whole lot colder - but not a whole lot hotter - before we die. Why is that?<br/>

From the long extinct Stegosaurus, to tiny modern mice, all sorts of animals grow bits of bones inside their skin. These structures are called osteoderms, and they're often more than just a suit of armor.

The concept of warm-blooded and cold-blooded animals is outdated because there are actually tons of different animal thermoregulation strategies.

Sometimes, plants do unexpected things. Like control their own body temperature.

Paul Andersen reviews the major concepts within the fourth unit of the new AP Biology framework. He begins by differentiating between negative and positive feedback loops. He explains how a stable internal environment is maintained...

In this video Paul Andersen details the important structures and functions of the integumentary system. The integumentary system includes the skin, hair and nails in humans.

Paul Andersen defines the major elements of feedback loops. The receptors and effectors both sense and respond to changes in their environment. The following examples are used to illustrate the importance of feedback loops in...

Paul Andersen explains how feedback loops allow living organisms to maintain homeostasis. He uses thermoregulation in mammals to explain how a negative feedback loop functions. He uses fruit ripening to explain how a positive feedback...

Paul Andersen describes four important homeostatic loops in biology. He begins with a brief description of the elements of a homeostatic loop. He then describes how the hypothalamus helps us maintain a stable internal body temperature....

Paul Andersen explains how organisms are able to regulate their internal body temperature (or not). He starts with a brief description conduction, convection, radiation and metabolism. He contrasts ectotherms and endotherms. He also...

In this video Paul Andersen explains the structures and functions of seventeen major parts of the brain. He begins with a quick discussion of brain evolution and ends with a review of the major parts presented inside the brainstem,...

Dive into the fascinating world of winter eating habits and discover why we tend to choose richer, calorie-dense foods during the colder months. Learn about the body's thermoregulation process and how it influences our dietary choices,...

This video covers:

- Why we need to regulate our body temper
ature
- How the thermoregulatory centre in the b
rain works
- How we warm ourselves up when
we're too cold
- How we cool ourselves dow

n when we're too...

Homeostasis explains how organisms maintain homeostasis by analyzing thermoregulation, water regulation, and oxygen regulation.

The video explains the importance of maintaining a stable body temperature for enzyme reactions and how the hypothalamus in the brain is responsible for thermoregulation. It covers the different factors that affect body temperature,...

This video explains the concept of thermoregulation and how the body maintains its core temperature. It discusses the role of the hypothalamus in monitoring and controlling body temperature and how it responds to changes in temperature...

This video discusses the different types of sweat produced by the body and how they are influenced by various stimuli. It explains the functions of the apocrine and eccrine glands in producing sweat and their roles in thermal regulation...

In this live-action program viewers will learn that the cardiovascular system comprised of the heart and the circulatory system that includes the heart, blood vessels, and approximately five liters of blood.

Students will come to...

In this live-action program viewers will learn that the integumentary system is the body’s barrier between its interior and the outside. It is an organ system consisting of the skin, hair, nails, and exocrine glands. Students will come...

In this live-action program viewers will learn that the integumentary system is the body's barrier between its interior and the outside. It is an organ system consisting of the skin, hair, nails, and exocrine glands. Students will come...

Desert Elephants (Loxodonta africana) in habitat, Ugab River Basin, Namibia: desert-dwelling population of African Bush Elephant though not distinct subspecies

Desert Elephant (Loxodonta africana) head, cu, Ugab River Basin, Namibia: desert-dwelling population of African Bush Elephant though not distinct subspecies

Desert Elephant (Loxodonta africana) camouflaged, Ugab River Basin, Namibia: desert-dwelling population of African Bush Elephant though not distinct subspecies

Desert Elephant (Loxodonta africana) flapping ears, Ugab River Basin, Namibia: desert-dwelling population of African Bush Elephant though not distinct subspecies