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With the introduction of thermal imaging, the old pattern of counting the whales migrating past the California coast by watching them through binoculars would not be followed by scientists anymore.

The imaging helps count whales and there is no need for scientists to be there. It’s an annual tradition being followed to count gray whales. They travel from their summer feeding ground in the Arctic to their winter locations off the coast of the Baja in Mexico.

With the new technique, the cameras will grab the pictures whenever the whales come to the surface and breathe through their blow holes. When whales comes to the surface to breathe then they release air, which is much warmer than the surrounding air and the camera is able to click the image.

On Sunday, the US, Canada and parts of Mexico is going to begin Daylight Saving Time again. Many Caribbean Islands are also going to set their clocks forward. On March 29, many European countries will set their clocks forward as well.

The Daylight Saving Time will not start in Hawaii, Arizona, and parts of Alaska in the US. In Canada, the scheme will not be active in Saskatchewan and in other areas in territories and parts of Mexico.

It is expected that the coordinated time changes will cost the airline industry $147 million a year in travel disruptions alone. Americans on Central and Rocky Mountain time is going to spring forward for the last time as planned. It has been informed that Americans on Pacific Time must set their clocks forward two hours in place of one.

On Friday US President Barack Obama called for criminal justice reform as part of the modern struggle for civil rights. At South Carolina's Benedict College, Obama said that racial discrimination from police in Ferguson, Missouri, was oppressive and abusive.

Obama's comments came on the eve of the 50th anniversary of 'Bloody Sunday', when police beat many of people who were marching from Selma to Montgomery in order to protest their lack of voting rights.

In his most expansive comments about the Justice Department's report on bias against blacks in Ferguson, Obama remarked that is quiet surprising to know that the investigators merely had to look at email sent by police officials to find evidence.

Over 100 boxes of Girl Scout Cookies have been sold by sisters Aurora and Eden Ray on Friday. They did something different that no other Oregon Girl Scouts might have ever done. They sold the organization's famous Samoas, Tagalongs, Thin Mints and other cookies outside a medical marijuana dispensary.

"It's actually great to sell here at this place because none of our Girl Scouts have done this before. We're hoping to show people that we're just trying to make a difference and help people and stuff", said Aurora, standing outside the Oregon Microgrowers Guild on Cross Street in Eugene's Whiteaker neighborhood with her sister and parents, Ralph and Belinda Ray.

A new study by the Johns Hopkins Bloomberg School of Public Health in Baltimore unveiled that if one spouse increases exercise levels then other spouse also does the same.

"When it comes to physical fitness, the best peer pressure to get moving could be coming from the person who sits across from you at the breakfast table", said study's co-author Laura Cobb, a doctoral student at Johns Hopkins.

Therefore, it can be said that if exercising level for some adults has to be increased then counseling should be done of married couples together. It will lead to healthier results than counseling them separately.

According to a non-profit organization OCEARCH, a great white shark weighing over 900 kilos returned to the waters of the northern Bahamas.

The 4.4-meter (nearly 14.5-foot) female shark named Lydia has been tracked since March 2013 by a GPS device. The shark has traveled more than 55,500 kilometers (34,500 miles) since she was tagged with a locator device off Jacksonville, Florida, on March 3, 2013.

It has travelled over the mid-Atlantic ridge toward Europe and western Africa then back again. OCEARCH has made a Twitter account of Lydia, which has provided the first ever details about great white sharks over the last two years.