How Swiftlets Zero in on Home Nest in the Dark

Cave Swiftlet Collocalia linchi

Cave Swiftlet

Swiftlets are small birds that live in southwestern Asia and Australia. They make their nests far back in dark caves. These birds have small eyes and the caves are pitch black.

With fast wings, such as swallows have, the swiftlet flies at high speed into the cave. Rapidly it flies directly to one tiny nest among hundreds. As soon as the bird enters the cave, it begins making a series of high-pitched clicks. The little bird has the ability to vary the frequency of the sounds and, as it approaches the wall, it increases the number of clicks per second until they are about 20 per second. The time required for the clicks to bounce off the wall and return reveals the distance to the wall.

swiftletScientists have tried to figure out why the clicks vary in frequency as the bird gets closer to the wall. They eventually discovered that the tiny bird – with a brain an eight as large as your little finger – does this in order to hear the return echo! The problem eis that the click must be so short and so exactly spaced apart, that its echo is heard by the ear of the bird – before the next click is made. Otherwise the next click will drown the sound of the returning echo.

By the way, how did the swiftlet identify its own nest by those clicks? There are hundreds of nests in the cave. Scientists try to solve such problems, but hey are unable to do so.

Somehow, evolutionary theory does not seem to be of any help.

Ryan Munchinsky – Missionary Profile

Ryan Munchinsky

Ryan Munchinsky

Ryan grew up in a Christian family, and was taught by his parents about God from an early age. While still young, he believed in Jesus Christ, putting his trust in Him as the only Saviour, and was baptized under water. During his teenage years, Ryan actively participated in the Bible Quizzing program, memorizing large amounts of the Scriptures, which the Lord used to help him mature in the faith and become more like Christ.

During university, Ryan developed an interest in Japan, and went on to teach English there for two years after graduating. While in the country, Ryan recognized the poor spiritual state of the country, as the Japanese church is dying out, and most people living there have never heard the Gospel of Jesus. These things caused him to cry out to God on behalf of the Japanese people, and began asking the Lord whether he should become a missionary to Japan.

Upon his return to Canada, God made it clear that Ryan should indeed return to Japan to spread the Gospel and make disciples. Ryan now serves with OM (Operation Mobilization) in the Mie prefecture of Japan. His ministry focuses on evangelism and discipleship multiplication. Matthew 28 teaches that all believers are called to make disciples. As such, Ryan trains Christians to pass on the things they have learned to the next generation of believers.

Watch for reports from Ryan from time to time.

He would appreciate your prayers as he is studying Japanese and looking for  opportunities to share Christ whenever he is with the Japanese.

John Mackay, The Creation Guy Speaks on Climate Change

You may hear and see the Creation Guy

Creation Guy -John Mackay

Creation Guy – John Mackay, of Australia

speak on climate change here:

Video: Creation Guy on Climate Change.
Climate-Change-Video-outline

This is a replay of his presentation at the Erindale Alliance church on December 2, 2018.

Globe-Swimming Eels Coming Full-Circle

Eels from North American and European rivers travel out into the Atlantic and swim south, to the Sargasso Sea. It is an immense patch of water in the tropical Atlantic Ocean, between Bermuda and the West Indies, which is filled with a variety of seaweed and small creatures.globe-swimming eels full-circle

Arriving there, the eels know exactly what to do. Going to a depth of 1300 to 2500 feet, they lay their eggs and then leave. The parents die without ever seeing their young.

Because of where the eggs were laid, the young are gradually carried eastward at a depth of 700 feet into the Gulf Stream. Northward it takes them, and on and on they go.

Arriving at the northeastern U.S., half the eels head west and journey up American rivers into the the Great Lakes to localities where their parents formerly resided.

The others continue swimming with the Gulf Current until they are off the coast of Europe. As do the American eels, when they arrive at the edge of the continental shelf, which maybe several hundred miles from the coast, their bodies begin changing. Until now, they have not needed complicated swimming gear; for they were carried along by the Gulf Current. But now, at just the right time, their bodies changed – narrowing, shrinking a little, and growing pectoral fins. Soon they look like their parents, but a little smaller and more transparent.

As soon as this change is completed, the eels stop eating and head directly to the European rivers. Some go into Britain, others into the Baltic, still others up the rivers of France, and others go through the Straits of Gibraltar into the Mediterranean. Some go all the way to the Black Sea.

These saltwater fish now swim up freshwater rivers unnoticed by most predators, because they are almost transparent. After several months, they have arrived at their parents’ home, and they begin feeding again.

Now they grow to full size and opaque appearance, with yellow backs and sides. After several years (3 for males, 8 or 9 for females), their eyes enlarge, for they will now need sharper vision as they head back to the sea. If necessary, they are known to crawl around waterfalls and across dew-drenched fields.

Tracked by scientists, reaching the ocean they swim at a depth of 200 feet toward the northwest until they reach the continental shelf. Then they quickly dive to about 1400 feet. Six months later, attached radios show that they have arrived back at the Sargasso Sea – 3500 miles from where they started.

Uniquely Designed Creatures Show Forth an Intelligent Designer

Quail Chicks Still in their Shells

quail eggs which hatch together

quail eggs

The quail builds her nest and sets on her eggs on the ground; so they must all hatch at the same time. Not until the entire dozen or so are laid, does the mother quail begin setting. Why does she wait until then? Who told her to do this?

However, all the eggs do not develop at the same rate. Yet all hatched out at the same time.

Scientists eventually discovered the cause. The faster ones click in their shells to the slower ones, and that causes the slower ones to speed their development! Everything in nature is a continual amazement.

Moles Equipped to Dig & Sense Worms and Grubs Deep Underground

The mole is not blind, but has good eyes although often hidden by fur. It may not run very well, but it surely can dig! A mole’s front feet are small spades, with well-designed claws on the ends.

Its nose and tail have special nerve endings which can strongly sense vibrations. These vibration sensors obviously were carefully designed, for they have thousands of parts. With them, a mole can actually hear worms and grubs crawling several feet away in solid dirt.The mole is not ruining the ground, but is eating the grubs which destroy the plants.

The Adjustable Jaws of Squirrels, Rats, and Beavers

dental bones of rodents

dental bones of rodents

A squirrel, rat, or beaver has perfectly designed teeth. When it wishes to cut something with its chisel teeth, it slides its jaw forward.In order to grind up its food with its back teeth, it slides its jaw backward, and the cutting teeth fit, out of the way, in a vacant space.

Warm Blooded Creatures That Have – a “Counter-Current Exchange”

A man standing with his bare feet in cold water would not survive long, but a  wading bird can stand in cold water all day, and the whale and seal swim in the arctic with naked fins and flippers, continually bathing them in freezing water.

All such warm-blooded creatures have to maintain a steady body temperature. How do they manage to do this?

They use what biologists call a “counter-current exchange.” It is a method of heat exchange used in industry.

Rete mirabile counter-current blood exchange

Rete mirabile counter-current blood exchange

In animals it is called rete irabile, or “wonder net.” The blood in one vessel flows in the opposite direction to the adjacent vessel,  and in this way warm blood passes on its heat to the colder blood. It is equivalent to a double layer of circulating blood.

Termites are Blind with No Brains; Yet They Build Skyscrapers with Air-Conditioning!

termites are blind and have no brains, yet they build high rises like this

Image by bernswaelz from Pixabay

It all starts with two termites, a king and queen. They lay eggs, but never teach their offspring anything. How can they, when they have almost no brains and are all blind?

Working together the young build large termite towers, part of which rise as much as 20 feet in the air. Each side may be 12 feet across. The narrow part lies north and south, so the tower receives warmth in the morning and late afternoon, but less in the heat of midday. Scientists have discovered that they build in relation to magnetic north.

Because it rains heavily at times, the towers have conical roofs and sides sloping from smaller at the top to larger at the bottom. The eaves of the towers project outward, so the rain cascades off of them and falls away from the base of the tower. That takes more thinking than a termite is able to give to the project.

When they enlarge their homes, they go up through the roof and add new towers and minarets grouped around a central sphere. The whole thing looks like a castle. In this tower is to be found floor after floor of nursery sections, fungus gardens, food storerooms, and other areas, including the royal chambers where the king and queen live. If termites were the size of humans, their residential/office/building/factory complex would be a mile high. Yet these are tiny, blind creatures, the size and intelligence of worms.

Then there is the air-conditioning system. In the center of the cavernous below-ground floor is a massive clay pillar, supporting the ceiling of this cellar. Here is where their central Air Conditioning System Processor is located. It consists of a spiral of rings of thin vertical vanes, up to 6 inches deep, centered around the pillar, spiraling outward. The coils of each row of the spiral are only an inch or so apart. The lower edge of the vanes have holes ti increase the flow of air around them. The vanes cool the air, and a network of flues carries the hot air down to the cellar.

From high up in the tower these ventilating shafts down downward. But carbon dioxide must be exchanged for oxygen, which the few, guarded entrances cannot provide. So the top of the flues butt against special very porous earthen material in the top walls of the tower, just inside the projecting eaves. Fresh air is thus carried throughout the towers by the ventilating system.

Porpoises See Sound Pictures in their Head

harbourt porpoise sees sound pictures

harbourt porpoise sees sound pictures

Porpoises have a special region in their head (called the “melon”) which contains a special type of fat. Because the speed of sound in that
fatty tissue is different than that of the rest of the body, this fat is used as a “sound lens” to collect sonar signals from a distance,  which are then  transmitted by nerves to the brain – producing a small TV screen “sound pictures.” Because the composition of the fat varies in different parts of the melon, this produces a “doublet” lens which is more accurate. Surely, the porpoise did not make this equipment.

Rats’ Teeth Inspire Self-sharpening Saw Blades

a rat

a rat

The teeth of a rat are designed so the top two front teeth go behind the bottom two, at just the right angle to produce self-sharpening teeth.

Engineers at General Electric wanted to design a self-sharpening saw blade in order to obtain exactly the right angel in relation to the metal it is cutting; so they studied the teeth of a rat. They found there was no other way it could be done as efficiently. As it slices through the metal, small pieces of the new blade are cut away by the metal, thus always keeping the blade sharp.

That self-sharpening blade lasts six times longer the blade sharp. That self-sharpening blade lasts six times longer than any other blade they had previously been able to make. All because the trained researchers studied the teeth of a rat.

Who designed those teeth?

The Synergy of our Senses

Why do you have odor-detecting cells in your nose? ‘

Why can you taste with your tongue? Why does food have built-in flavors? The food and your tongue were designed for one another!
Why do you have semi-circular canals in your ears, sending signals to your brain, so you can stand without falling over?

Sunlight-powered Batteries in Plants? Brains?

a chloroplast and what's insideScientists estimate that over 400 million-million horsepower of solar energy reaches the earth every day. Photosynthesis is the process by which sunlight is transformed into carbohydrates (the basis of all the food on our planet). This takes place in the chloroplasts. Each one is lens-shaped, something like an almost flat cone with the rounded part on the upper side. Sunlight enters from above.

Inside the chloroplast are tiny cylinders, called lamelliae, that look something like the small circular batteries used in small electrical devices. Each cylinder is actually a stack of several disk-shaped thylakolds. Each thylakold is the shape of a coin. Several of these are stacked on top of each other, and this makes a single stack, or lamelium. A small narrow band connects each stack to another stack. They look like they are all wired like a bunch of batteries. Sunlight is processed by chlorophyll in those stacks, and is then stored (!) there as chemical energy in the form of sugar molecules. Chlorophyll, itself, is very complicated and never exists outside of the plant, just as DNA and ten thousand of other chemical structure never exist outside plants and/or animals.

If they are not found outside, how did they ever get inside?

In many plants, the tiny disks containing chlorophyll move about within plant cells and adjust for different light and heat conditions. When the sunlight is too strong the little disks turn edgewise. On an overcast day, they lie as parallel to the sky as they can in order to take in the most light. Do they have brains?

[used by permission from the Evolution Handbook – pg 240]

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