Dallas Zoological Society Partnership : Zoo Science

Laboratory Research Methods

Topic Overview
Quick Facts
Modern zoos differ greatly from older zoos; today’s zoos keep animals in surroundings that look more like their natural habitats and provide activities to stimulate behaviors that are normally be seen in the wild.
National zoo and aquarium associations can certify or accredit zoos by if they follow certain rules and treat the animals well.
One of the purposes of zoo research is to help increase wild populations of endangered species.
When measuring liquids in a graduated cylinder, measure at the bottom of the meniscus and lower your head until the liquid is at eye level.
The Okapi is a relative of the giraffe, whose hindquarters resemble a zebra. The Dallas Zoo is participating in a research project involving Okapis.
The Henry Doorly Zoo in Omaha has begun research on why 2,000 out of 6.000 Amphibian species are in danger of becoming extinct.
Wild animal species live with the constant threat of urban development because they tend to live in places with a great variety of natural resources that are appealing to humans.
The world’s largest aquarium is in Atlanta, Georgia; it is the only place in North America to see captive whale sharks.
The San Diego Zoo’s Conservation and Research for Endangered Species is the largest zoo research program in the world.
Breeding animals in captivity in places like zoos can help keep animals from becoming extinct; one example of successful captive breeding is the California Condor.
Begin the Lesson
Obtain a copy of “If I Ran the Zoo,” by Dr. Seuss. Read the book to the students, or ask several students to volunteer to take turns to read it to the class. Ask the students to look at the pictures of the zoo on the first few pages.
What kind of surroundings do the animals have? They are in box-shaped or concrete cages with metal bars.
Do you think that these structures look like places where these animals would live in the wild? No
Ask the students if they have visited any zoos lately.
Do the places for the animals look like the ones in Dr. Seuss’s book? Probably not.
Point out to the students that zoos have changed since Dr Seuss wrote this book. Before, they might have been places in big cities just to keep animals for people to look at, but now, they are great places for learning about natural habitats and how to preserve them. Great science goes on at zoos today, and that means zoos need equipment. Therefore, not only will we be learning about what zoos do, we will be reviewing some basic tools we need in the lab.
Whole Class Introduction to the Lesson
You will need at least one computer with Internet connectivity and a projection device, a classroom with more than one computer, or access to a computer lab. This introduction will take approximately 10 minutes to complete.
Visit the website:
http://www.goodzoos.com/research.htm
Ask the students to read the first three paragraphs and then write a hypothesis in their lab notebooks that fits the work with the gerenuk.
An acceptable hypothesis would be
If handlers provide less water in the gerenuk habitats, the females will produce more concentrated urine that let the males know when it is time to breed.
After the students read the rest of the passage, ask them the following questions:
Did you know that there are research projects going on at zoos?
Some students may respond that they have visited zoos and learned about conservation and research.
How do you think doing research at zoos can help animals?
Research can help zoos take better care of animals. Research can also help people learn more about how to save wild animals from going extinct.
Tell the students that today’s lesson will explore different kinds of research at zoos all over the world, as well as provide a review of basic lab equipment and lab safety. The basics students learn today and through this year may be useful to them if they are interested in jobs that work with animals.
As part of the introduction, you may want to review some of the glossary terms in advance of students going online. At this point, you can launch the WebLesson as whole-class activity using a projection device, or you can assign students to work individually or in teams in a computer lab.
WebLesson Sites
Introduction
Long ago, zoos were places where animals were kept so people could see them up close. Little thought was given to what the animals needed to be healthy, or how their relatives in the wild could be protected. Times have changed. Today zoos have many exciting and interesting programs within their grounds and in countries far away where the natural places the animals live are disappearing. Not only are zoos concerned with the well being and comfort of the animals that live in the zoo, they are also working on how to save endangered species in the wild.

Zoos also have programs in place that give scientists the opportunities to conduct laboratory research to learn more about different kinds of animals and their habitats. Sometimes, special equipment is needed. When these scientists were young, they learned to follow certain steps so that others would be able to learn from their research. To do an experiment in a lab, you must learn about the different kinds of equipment that can be used. There are specific ways to take measurements with certain pieces of equipment, and there are certain safety rules that must be remembered when working with glass, heat, or dangerous chemicals.

When you visit your local zoo, you can do more than just look at wild animals. You can learn about where there natural habitat is, and how the zoo works to imitate that habitat for their residents, which animals are on the endangered species list, and how you can help them.

Scenario
It is the year 2027, and an amazing discovery has been made! In a neighboring galaxy, a solar system is discovered with a blue planet very similar to the Earth. This plant appears to be much younger; it has land masses and many plants, but appears to have very few animals and no signs of human-like intelligent life. NASA and a collection of zoological societies decide to work together and propose the Noah’s Rocket Ship Planet Z project. The goal of the project is to save endangered species from Earth by sending them to this planet. Before the animals are sent, humans will build a space station and a super satellite system that will be able to take very clear pictures of different parts of the planet. Special sensory equipment will also be installed on the planet with very little disturbance to the landscape. This will allow zoo scientists to travel to the space station and do animal research. Planet Z will be a safe haven for animals, with no habitat loss due to human settlement! In order to figure out what kind of animals should be sent to Planet Z and what research should be done to study them, we need some background information about zoos and why they do research.
Lesson Pages
Association of Zoos and Aquariums
http://www.aza.org/ConScience/ConScienceSSPFact/
Oakland Zoo: Animals, News & Events, Conservation, Education, Oakland California
http://www.oaklandzoo.org/zoo-info/animal-management/about-zookeeping/
Smart Tutor-Chemistry I-Use of a Graduated Cylinder
http://lc.brooklyn.cuny.edu/smarttutor/chem1/use_gradcylinder.htm
Rich Media
San Diego Zoo’s Animal Bytes: Okapi
http://www.sandiegozoo.org/animalbytes/t-okapi.html
Rich Media
Primary Source
Honolulu Zoo Society Mission
http://www.honzoosoc.org/mission.htm
Science and Research: St. Louis Zoo
http://www.stlzoo.org/animals/scienceresearch/
WAZA: World Associations of Zoos and Aquariums-Projects
http://www.waza.org/conservation/projects/index.php
Rich Media
Conclusion & Project
Conclusion
A trip to the zoo is about much more than viewing wild animals. Zoologists and zookeepers not only meet basic needs of the animals like food and water; they also to provide a chance to keep skills they would naturally have in the wild strong. For example, placing different objects in the animal habitats help the animals behave as if they were in the wild. Research in zoos can also help us find ways to help preserve habitats for wild animals so that they have large enough land areas to allow their populations to reproduce. Zoos all over the world not only have exciting projects within the zoo area, they additionally cooperate with other zoos to help endangered species. You can learn about the other countries where the animals live and research programs in those countries that are working to save species that might become extinct. Zoos are very important places for people to have the chance to feel a connection with animals so that they will understand how important it is to protect them and keep them from disappearing.

When you get back to your lab at school, you can practice with equipment that you may use again some day if you are interested in working at a zoo. Graduated cylinders, microscopes and triple beam balances are all pieces of equipment that you will use in science classes until you finish college. It is very important for you to practice using lab equipment accurately and safely, so that other people doing the same experiment have a chance to get similar results or build upon your data and ideas. Maybe you, your kids, or grandkids will conduct experiments that find even better ways to prevent extinction, take better care of zoo animals, and preserve habitats for wild animals, even if we never find a Planet Z.

Project
Write a plan for a research project for Planet Z. The plan should consist of three paragraphs.

Use the first paragraph to choose a breeding pair of one kind of animal that you would like to transport to Planet Z that you feel is important to research.

The second paragraph should include a hypothesis and a list of equipment you will need to test your hypothesis. Keep in mind that you will need some special equipment installed on the plant to keep track of the animals because you cannot go to the planet. You will also need equipment at the space station to make measurements or record data.

The third paragraph should explain the method, or steps you would use during your research project.

Glossary
implemented - something that has begun
sustaining - something that lasts a long time
diverse - different
menagerie - collection of wild animals kept where people can see them
taxonomy - science of naming and grouping closely related animals
ocular - something that has to do with the eye
specimen - material that is being viewed under the microscope, such as a drop of blood or a small section of a leaf
graduation - marked division on a given scale
parallax - when an object changes position or direction because you are looking from a different place
certainty - exact, for example, the longer line half way between the 1 and the 2 is exactly .5
estimated - making a guess based on something you already know
thermal - having to do with heat
disposal - throwing something away that is considered waste or not needed
soldering iron - metal tool that can put together parts made of metal; pronounced saw-der-ing
sterilized - cleaned with a special solution to remove bacteria, body fluid, or parasites; also sterilized
components - parts
collaborative - working or cooperating with others
camouflage - pattern or design that blends in with its surroundings, making the object difficult to see
resemblance - when one object or living thing looks like another
facilitated - made possible
non-invasive - not sticking the animal with a needle, performing surgery or sticking any instruments into the cavities of the animal
welfare - the daily condition of the animal
deleterious - something that would be bad for the animal
hippocampus - a part of the brain
bevy - a large amount
conscious - something you must think about to do, a voluntary movement
physiology - study of the chemical reactions in living things
poaching - hunting and killing animals on another person’s land; it is against the law
acquisition - receiving
surrogate - to substitute or use in place of
urbanization - building cities
secretions - fluids released from the body
in situ - within the site, for example research done on the grounds of a zoo
Oceania - refers to a large area that includes Australia and the islands around it