Share
A- A A+

Article from:

Creation  Volume 35Issue 4 Cover

Creation 35(4):38–40
October 2013

Free Email News
By Design
by Dr Jonathan Sarfati

US $15.00
View Item
God the Master Designer


US $10.00
View Item

Baleen whales have unique sensory organ

by

Baleen-whales
Image ID: 036478 – copyright © Doug Perrine /SeaPics.com

Some of the largest animals ever to exist on the earth are the baleen whales, including the largest of all, the blue whale, about 30 metres (100 ft) long and weighing about 200 tonnes. They are very different from the toothed whales that evolutionists claim they evolved from. Instead of attacking large prey, they gulp enormous amounts of water into their mouths—up to 80 m3 (almost 3,000 cubic feet). This is expelled through comb-like bristly plates of baleen, often called “whalebone” although it is made of keratin, just like hair and skin. Shrimp-like animals called krill, as well as small fish, are caught and swept up by the tongue then swallowed as food, only about 10 kg per gulp.

The largest group of baleen whales, including the blue, are rorquals (Balaenopteridae), which have pleated folds of skin running lengthwise along the lower jaw. These enable the mouth to expand enormously. Also, the right and left halves of the lower jaw bone are not fused, so can expand sideways.

Both these features are important for the rorquals’ unique mode of attack called “lunge-feeding”, swimming very fast to build up the necessary pressure. Lunge-feeding “involves rotating the jaws, inverting the tongue and expanding the throat pleats and blubber layer,” according to Nick Pyenson of the Smithsonian.1 Lunge-feeding has been called the largest biomechanical event on earth.2

Now Dr Pyenson and his team performed a CAT scan of a whale jaw. They found a unique grapefruit-sized organ, rich in nerve and blood supply, within the fibrous cartilage tissue that connects the left and right lower jaw tips.3 Pyenson says, “We think this sensory organ sends information to the brain in order to coordinate the complex mechanism of lunge-feeding”.1 The organ detects “dynamic rotation of the jaws during mouth opening and closure,”3 and “provides the necessary input to the brain for coordinating the initiation, modulation and end stages of engulfment.”3 It also “probably helps rorquals feel prey density when initiating a lunge”.1 That is, this particular organ seems essential so that the enormous energies involved don’t damage their unfused jaws.

Common sense would suggest that this is a design feature. However, the researchers pay the obligatory fact-free homage to evolution. Without giving any step-by-step mechanism, the researchers assert that this organ evolved before large size and other rorqual features did. Indeed, it was asserted to be a ‘pre-adaptation’ that is “responsible for rorquals claiming the largest-animals-on-earth status”, according to Pyenson’s co-author Bob Shadwick of the University of British Columbia. Yet it is only the large size, producing the huge energies of this “extreme feeding method”, that would necessitate such a complex organ in the first place. The ‘pre-adaptation’ claim is a tacit admission that they can’t explain what selective forces could have produced the organ.

Related Articles

Further Reading

References and notes

  1. Rorqual whales have unique new sensory organ, wildmammal.com, 30 May 2012. Return to text.
  2. Potvin, J. and Goldbogen, J.A. Passive versus active engulfment: verdict from trajectory simulations of lunge-feeding fin whales Balaenoptera physalus, Journal of the Royal Society Interface 6(40):1005–1025 | doi:10.1098/​rsif.2008.0492. Return to text.
  3. Pyenson, N.D. et al., Discovery of a sensory organ that coordinates lunge feeding in rorqual whales, Nature 485 (7399):498–501, 2012 | doi:10.1038/nature11135. Return to text.

It has been said that “Information is power”. When it comes to creation information we’d have to agree. Keep the ‘powerful’ evidence for God being Creator coming. Support this site

Comments closed
Article closed for commenting.
Only available for 14 days from appearance on front page.
Readers’ comments
Chandrasekaran M., Australia, 20 October 2014

My take on why evolution scientists and researchers pay the obligatory fact-free homage to evolution is that for them evolution has been observed and it’s just that it has not been observed while it’s happening. So, the mere existence of the unique sensory organ of Baleen whales is the proof of evolution. All that they think, I think, required now is to fill in the gaps which they did not observe while it happened which is dark evolution similar to dark energy and dark matter.

Ed C., United Kingdom, 20 October 2014

Fascinating!!

Every new revelation from your investigations give me great joy because it is further evidence supporting God’s Creation that I can present to my Christian friends (and hopefully to non-Christian friends also) as our Lord gives opportunity.

Thank you for all that Creation Ministries does to confirm Biblical truth. You will have a special place in Heaven for being the bearers of truth.

Ed

Copied to clipboard
9789
Product added to cart.
Click store to checkout.
In your shopping cart

Remove All Products in Cart
Go to store and Checkout
Go to store
Total price does not include shipping costs. Prices subject to change in accordance with your country’s store.