Category: Trade-Off

Power Amplification

November 28, 2024 By arne hendriks Off

Several species of small animals have evolved bio-mechanical power amplification to overcome the disadvantages of being small in a world dominated by bigness. Power amplification increases power beyond regular muscular levels through an elastic medium (e.g. tendons) able to catch and store large amounts of…

Scuba Bubble

November 21, 2024 By arne hendriks Off

Reptiles have always been spirit animals for The Incredible Shrinking Man research. From the shrinking iguanas of the Galapagos islands to the unsinkable Jesus gecko, reptiles often have something interesting to tell us about the consequences of size and the advantages of smallness. Cold-blooded reptile…

Trunkism

November 10, 2020 By arne hendriks Off

The growth of a tree trunk demands considerable investment and focus of resources. The competition for sunlight can lead to very differently formed trunks within the same species of tree. A comparison of two white oaks tells the story. The broad-crowned shorter oak grew as a…

Height Blind

January 8, 2020 By arne hendriks Off

Greater height in humans is commonly associated with advantages such as leadership skills, wealth, intelligence or social status. Differences between short and tall men are often found for these traits, mainly in favour of tall men. But are height-related effects biologically determined or do they…

Fisherian Runaway

June 5, 2018 By arne hendriks Off

Fisherian runaway is a mechanism proposed by the mathematical and evolutionary biologist Ronald Fisher, to account for the evolution of exaggerated male ornamentation by persistent, directional female choice. When females are attracted to a certain trait within males, this trait over time gets over-emphasised because males with the trait…

The Dehnel Phenomenon

December 31, 2017 By arne hendriks Off

The Dehnel phenomenon, named after its discoverer, Polish zoologist August Dehnel, is the ability of certain species of animals such as shrews and weasels to shrink skull, bones and major organs in order to survive scarce food situations. Interestingly, they shrink in anticipation, before the…

Deaf Fish

December 12, 2017 By arne hendriks Off

A recent study shows that every second farmed salmon we eat is deaf resulting of a deformity in the ear, caused by accelerated growth in aquaculture. The study’s lead author, Ms Tormey Reimer, says when they went looking for the cause of the deformity they…

Trade-Off Dialectics

March 7, 2016 By arne hendriks 0

A trade-off is a situation that involves exchanging one desirable quality or aspect of something in return for another quality or aspect. In an evolutionary sense it is often presumed that every advantageous alteration of a phenotype comes with a disadvantage since energy invested in one…

Outsourcing Brain Capacity

May 22, 2010 By arne hendriks 0

“But what do we do with the brain?”, was the first question a neighbor asked when he heard of the ambitions of The Incredible Shrinking Man to shrink the human species to 50 centimeters. It’s a good question.  Although not proven beyond a doubt, there…