Diversity of middle‐ear transformer mechanisms in kangaroo rats, kangaroo mice, and pocket mice

Scatter hoarding by kangaroo rats

© 1992 International Society for Behavioral Ecology We observed radio-implanted Merriam's kangaroo rats disposing of 10-g bonanzas of rolled oats in 48 trials in the field. The principal determinant of the initial disposition of discovered food was apparently its distance from the day burrow: food found within about 10m was mainly larder hoarded, whereas food encountered farther afield was usua...

Renal tubular excretion of urea in kangaroo rats.

I N PREVIOUS work, it was found that the ‘osmotic ceiling’ in the urine from the desert rodents Heteromyidae is exceptionally high compared with the osmotic ceiling in urine from other mammals. This mechanism is of importance to water conservation. The general objective of the further investigations was to find in what respects the function of the heteromyid kidney differs from that of other ma...

Natural space-use patterns and hippocampal size in kangaroo rats.

The size of the hippocampus, a forebrain structure that processes spatial information, correlates with the need to relocate food caches by passerine birds and with sex-specific patterns of space use in microtine rodents. The influences on hippocampal anatomy of sexual selection within species, and natural selection between species, have not yet been studied in concert, however. Here we report t...

Kangaroo mother care.

MCHIP’s Dr. Goldy Mazia is a Pediatrician/Public health physician with ample global newborn health experience. Dr. Mazia successfully practiced pediatrics in Colombia and in Israel for many years, before opting for a career in public health, where she has been recognized as a leading global expert. She serves as a newborn health expert on panels and in trainings around the world, including: the...

Kangaroo mother care.