Tasmanian Devil Facial Tumor Disease

© 2013 nofatcats. All rights reserved.

    The Tasmanian devil (Sarcophilus harrisii) is a critically endangered species due to a transmissible cancer that has inflicted up to 90% population decline since its emergence from a single devil Schwann cell sometime before 1996. The disease, termed … Continue reading

Melanoma in Wild Marine Fish

© Corel Corporation

Melanoma in coral trout (Plectropomus leopardus) has been reported as the first  documented incidence of skin cancer among wild fish populations. The fish presented in the following study were collected off shore in a marine protected area with no reports of pollution, … Continue reading

Naked Mole Rat

Photo: ALAMY

The naked mole-rat (Heterocephalus glaber) is an underground-living rodent found in parts of Ethiopia, Somalia and Kenya. They have a social structure unique to mammals called eusociality, similar to the hierarchy of bees. For a rodent, the naked mole-rat lives … Continue reading

Marine Turtles and Fibropapillomatosis

http://www.defenders.org/sea-turtles/basic-facts

  Fibropapillomatosis is an increasingly dangerous form of cancer that continues to affect the marine turtle population. Fibropapillomatosis is believed to be spread by a form of herpes virus. This disease causes massive tumors to form around the skin, eyes, … Continue reading

Whales- Resolving Peto’s Paradox

© 2013 Tavis Sparrer. All rights reserved.

Image from http://animalians.wikispaces.com/Humpback+Whales . Why don’t larger animals have higher cancer rates? This is the central question of Peto’s paradox.  Each cell has a chance of accumulating the mutations required to become cancerous.  If an animal has more cells, it makes sense that there … Continue reading

Transmissible Venereal Tumor

abkfenris

Transmissible venereal tumor (TVT) is a tumor that can be transferred from dog to dog via touch, and is most often transmitted via sexual contact.  The tumor usually appears on the genitalia of both females and males, but can also … Continue reading