1 / 18

Northern Leopard Frogs

The Northern Leopard Frog is a vital species for research due to its anatomical similarities to higher animals, aiding medical studies. This frog, commonly dissected and found across Canada and the U.S., features distinctive brown to green skin adorned with irregular black spots bordered in cream. Predominantly residing near clean groundwater and vegetation, it consumes a diverse diet including insects and even small mammals. Unfortunately, populations have declined since the 1970s, highlighting the need to understand and protect this critical species.

cleary
Télécharger la présentation

Northern Leopard Frogs

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Northern Leopard Frogs

  2. Why Study Frogs? Frogs are important to research and medical laboratories because their skeletal, muscular, digestive, nervous, and other systems are similar to those of higher animals. So, if you see a leopard frog don't think of its as just a common frog, think of it as one of nature's representatives.

  3. NORTHERN LEOPARD FROG • One of the most commonly dissected frogs • widely collected for the food industry • Females are larger than males • brown to green with three rows of irregularly arranged black spots. • spots are usually outlined in a cream colored border. • Although the dorsal surface of this frog is very colorful, the belly and undersides of the legs are pale white.

  4. WHAT DOES THE NORTHERN LEOPARD FROG EAT? • insects, earthworms, other frogs, snails, spiders, and other small animals. • can even eat small mice and fish! Their favorite time to hunt is in overcast, rainy conditions.

  5. Leopard Frog Habitat Most leopard frogs are found in clean groundwater near lightly wooded areas with significant vegetation.

  6. Where Are Leopard Frogs Found? Leopard Frogs are found in all provinces of Canada and within the United States. Declines in northern leopard frog populations were first noticed in the early 1970s.

  7. Differences Between Frog & Human Digestive Systems • Short gullet instead of esophagus • Undigested food goes into cloaca and out the anus

  8. Circulatory System Differences • Heart has 3 chambers in a frog • 2 atria and 1 ventricle

  9. Excretory System Differences • Most carbon dioxide leaves through the skin, not the mouth • Urine goes from bladder to cloaca and out the anus

  10. Respiratory System Differences • Do not have a diaphragm • Moves air into lungs by swallowing air

  11. Reproductive System Differences • Male frog – testes and oviducts • Female frog – ovaries and oviducts • Oviducts transport sperm & eggs to the cloaca and out the anus

  12. Placing Frog on Tray

  13. Exposing The Organs 1

  14. Exposing the Organs 2

  15. Liver and gall bladder

  16. Heart

  17. Lungs

  18. Kidneys

More Related