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Each fall, millions of North American monarch butterflies migrate to California and Mexico for winter. They make a massive journey (up to 4,830 kilometers/3,000 miles) and use the sun to ensure that they stay on course. On cloudy days they use Earth’s magnetic field as a kind of backup navigational system. (read more here)
Tremoctopus, more commonly known as the Blanket Octopus, is a genus of pelagic cephalopods that exhibit extreme sexual dimorphism. Females can reach up to 6.6 meters in length while males are at most a few centimeters long.
How do birds build their nests?
Scientists have discovered that a bird’s choice of nest material is much more complex than first thought.
There is a massive diversity of nests in the natural world. Some birds stitch leaves together, others create structural masterpieces.
Itwas originally believed that a bird’s choice of nest material was built into their genes. However scientists have discovered that birds learn to choose nest materials based on their physical properties, requiring a higher level of cognition.
By giving zebra finches stiff or floppy string, Dr Ida Bailey and team found that birds chose the best building material - stiff string allowing them to build strong nests in less time.
This research funded by BBSRC helps to provide insight into how complex cognition evolved in animals.
Image credit: Dr Ida Bailey, University of St Andrews
Radiolarians are protozoa that produce beautiful fossil shells like these ones.
This is Cassiopeia A, the remains of a star that died in a supernova explosion 335 years ago. The dead star can be seen in the center of the supernova remnant as a tiny blue dot.
The carapace (hard shell) of a jewel beetle (45x)
Neurospora crassa (bread mold) encapsulated into droplets (5x)
Photos of Iceland from a plane by Andrey Ermolaev
Cedrus Atlantica (cedar) leaf crosscut (200x)
A developing embryo of a fruit fly showing the expression of different genes. These genes will ultimately segment the embryo into specific body parts of the adult fly.
Image by Jim Langeland and Stephen Paddock, University of Wisconsin - Madison.
This 30 m (98 ft) diameter crater on Mars was formed within the last five years.
Coiled filamentous cyanobacterium Anabaena sp. (600x)
Chameleon embryo showing cartilage (blue) and bone (red)
Rat cerebellum (200x). The cerebellum refines movements as well as intellect and emotional processing.
Barbilophozia sp. (a leafy liverwort, bryophyte plant) and cyanobacteria (50x)
Author: Eleanor Lutz
Source: TabletopWhale.com
Hoodoos, like the ones shown here in Bryce Canyon National Park (UT, USA), are tall columns of rock found in basins or badlands. They’re also called fairy chimneys, earth pyramids, or tent rocks.
