How bats and dolphins are genetically similar

Bats and dolphins.

Bats and dolphins may live in radically different worlds, but the fact they both evolved a type of sonar means they resemble each other genetically, researchers now find.
When different species live similar lives, they can evolve similar traits, a phenomenon known as convergent evolution. For instance, dolphins, sharks and the extinct marine giants known as ichthyosaurs all differ from each other greatly in origin — dolphins are mammals, sharks are fish and ichthyosaurs were reptiles. However, they evolved very similar body shapes that help them live fast lives in the water — streamlined forms, stabilizing dorsal fins and crescent-shaped tails for traveling great speeds over long distances.
Recently, scientists found hints that convergent evolution caused species to resemble each other not just at the physical level, but also the genetic one. To find out how great this effect was, researchers analyzed genes in animals that independently developed echolocation, the ability to scan the world using sound.

Read the full story here.

Advertisements

Tags: , , , , , , ,

About jensera

Jennifer Harrington is a Toronto-based illustrator, writer and graphic designer. She illustrated the best-selling children’s book series 'A Moose in a Maple Tree,' which includes the titles 'A Moose in a Maple Tree,' 'The Night Before a Canadian Christmas' and 'Canadian Jingle Bells.' She is also the owner of JSH Graphics, a boutique graphic design agency that specializes in print and web advertising. With her latest project, Eco Books 4 Kids, Jennifer has partnered with illustrator Michael Arnott to create a series of ecologically-themed ebooks for children. Her next book, 'Spirit Bear,' is due for release in the Summer of 2013. Jennifer offers two different school presentations for her 'Moose in a Maple Tree' collection, an illustration demonstration and a Christmas concert series, which can be booked at www.amooseinamapletree.com. She will be taking bookings for school readings of 'Spirit Bear' beginning in October 2013.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: