Long baleen whale mothers are more likely to have female calves than males, according to a new study led by the University of Washington. The findings contradict a popular evolutionary theory postulating that strong mammals benefit more from birthing males. In 1973, Robert Trivers and Dan Willard proposed that fit female mammals can improve their odds for […]
Baleen — Kagit’ruaq Inartat kag’it’ruamek pilitaallriit. – They used to make baskets out of baleen. What do hooves, horns, hair, claws, fingernails, feathers, scales, beaks, and baleen have in common? They are all made of keratin, a fibrous protein found in living organisms. In humans, keratin makes up the outer layer of our skin […]
[dropcap]W[/dropcap]ASHINGTON— Blue whales around the world are singing a little flat, and scientists may now have more clues as to the reason why. A new study finds there’s a seasonal variation in the whales’ pitch correlated with breaking sea ice in the southern Indian Ocean. The new research also extends the mysterious long-term falling pitch to […]
Kagit’ruaq – Baleen Inartat kag’it’ruamek pilitaallriit. – They used to make baskets out of baleen. What do hooves, horns, hair, claws, finger nails, feathers, scales, beaks, and baleen have in common? They are all made of keratin, fibrous protein found in living organisms. In humans, keratin makes up the outer layer of our skin and […]