Ottawa, August 29: A new study by researchers from the University of British Columbia in Canada (UBC) has indicated that by shedding its bony “armour”, the stickleback fish has managed to thrive in freshwater and outsize its marine ancestor, a find which supports Charles Darwin’s natural selection theory.
Measuring three to 10 centimeters long, stickleback fish originated in the ocean but began populating freshwater lakes and streams following the last ice age.
Over the past 20,000 years – a relatively short time span in evolutionary terms – freshwater sticklebacks have lost their bony lateral plates, or “armour,” in these new environments.
Ottawa, Oct 6 : Climate scientists have said that the melting of the Arctic ice this year has been ‘fascinating’ and ‘alarming’.
Ottawa, Aug. 13 : The Canadian Government is creating a new fast-track immigration route for skilled foreign workers and students who''ve already proved employable in Canada.
