Mamels life animal

HYENA Clan Defeats Orca!!! FINAL BATTLE PLAY BY PLAY !! Mammal March Madness 2014 has officially ended, join us for Mammal March Madness 2015 with Mighty Mini Mammal and Mythical Mammal Divisions!              adapted from art by  Tracy A. Heath,  Matt Martyniuk,  Sarah Werning,   via Phylopic! Links to natural history & other research to explain battle outcomes: -WILD CARD MARCH 10 th  (battle details) -First Round Social Mammals 8PM Eastern March 11th  ( battle details )  Hyena, Musk Oxen, Hamadryas, Mandrill, Ethiopian Wolf, Tibetan Macaque, Wild Dogs, & Army Ants ADVANCE! - First Round Marine Mammals 8PMish (more like 8:30) Eastern March 12th ( battle play by play ) Orca, Sea Lion, Walrus, Humpback Whale, Bowhead Whale, Oceanic White Tip, Dwarf Sperm Whale, and Polar Bear ADVANCE! - First Round The Who in the What Now? Mammals 8PMish Eastern March 13th ( battle play by play ) Dhole, Binturong, Cassowary, Caracal, Saiga, Wallaroo, Fossa, and Babirusa ADVANCE! - First Round

In mammals, females dissolve parts of themselves to feed their babies. Or more science-y “mammalian females pay high energetic costs for reproduction because the synthesis of milk requires mobilization of bodily reserves to nourish developing young.” Photo by Pascal Gagneux  BACKGROUND In evolutionary biology, lots of research has been dedicated to understanding how mothers direct care and nourishment to their young in relation to their own physical, social, and psychological condition and where they are at in their reproductive careers (first baby, second baby, etc). Infant characteristics may also influence how mothers invest, and the characteristic of greatest interest to evolutionary biologists has been whether they are rearing a son or a daughter. Biologists have proposed numerous hypotheses “for sex-biased maternal investment,” but the most well-known and investigated remains the Trivers-Willard hypothesis. Trivers and Willard hypothesized that a female, depending on if she is in

Fifty years ago Devorah Ben Shaul published the seminal paper “The Composition of the Milk of Wild Animals” (1963). She had spent ten years aggregating published papers of milk composition as well as directly analyzing dozens of species’ milks.  Haruo Takino Eyeballing the data from 101 species, Ben Shaul posited that the composition of milks--the percent fat, protein, and sugar--did not necessarily cluster by the evolutionary history of taxonomic groups (aka  phylogeny ). She noted that “grizzly bear milk and kangaroo milk had virtually the same basic milk composition(pg 333).” Ben Shaul hypothesized that milk composition may instead reflect environmental pressures or nursing behavior. Fun Fact: Manatee nipples are in their arm… er… flipper pits. Ben Shaul posited that species’ milks clustered in relation to the degree of maturity at birth, maternal attentiveness, and nursing frequency, and the exposure to water and ambient temperature. Mammals that parked their infants and foraged fo