Image courtesy of Ole Jorgen Liodden/naturepl.com
Joel Kontinen
Maze-like bones in the noses of Arctic seals turn out to be an adaptation
for keeping warm in chilly conditions
Bearded seals have
convoluted nasal bones that help keep heat in their bodies
Arctic seals have evolved a nifty adaptation for staying warm in icy climes: intricate, maze-like bones in their noses.
Many birds and
mammals, including humans, have a pair of thin, porous nasal bones called
maxilloturbinates or nasal concha, which are covered by a layer of tissue.
“They take the
form of scrolls, or a branching form a little bit like a tree,” says Matthew
Mason at the University of Cambridge.
This is a good example of the intelligent design.
Source:
Chen Ly
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