The development of thermoregulation in the rat kangaroo,Potorous tridactylus |
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| Affiliation: | 1. State Key Laboratory of Robotics and System, Harbin Institute of Technology, China;2. Space Structure and Mechanism Technology Laboratory of China Aerospace Science and Technology Group Co.Ltd, China;2. UCL Division of Surgery and Interventional Science, University College London, London, United Kingdom;3. Leeds Institute of Emergency General Surgery, St James University Hospital, Leeds, United Kingdom;4. Department of General and Colorectal Surgery. East Kent University Hospitals NHS Foundation Trust, Queen Elizabeth the Queen Mother Hospital, Margate, United Kingdom |
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| Abstract: | - 1.1. The young were first seen out of the pouch on day 103.2 ±2.0 post-partum, and were permanently out of the pouch on day 119.7 ± 1.6, several days prior to the birth of the next young on day 122.8 ± 2.2.
- 2.2. The average mother's pouch temperature and the young's rectal temperature while in the pouch showed similar ranges—however, further analysis demonstrated that the pouch temperature decreased towards the end of lactation.
- 3.3. The difference in rectal temperature of the young in the pouch from 90–107 days to 108–123 days was 0.01 ± 0.34°C, whereas the mother's pouch temperature decreased 0.68 ± 0.37°C.
- 4.4. The results of this study suggests that curiosity and the need for solid food are the primary reasons for the young leaving the pouch and temperature does not play a primary role in the evacuation of the pouch.
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