Being nocturnal, bats search for food at night, but their night vision is fairly poor. So instead they use echolocation, or reflected sound, to home in on insects such as moths. Their built-in sonar directs them to the precise location of the tasty morsels; then it’s just a matter of swooping in and gobbling them up.
So the bats’ prey have to be crafty as well.
Certain species of tiger moth have the ability to emit sonar of their own. As a bat is closing in, the moth emits a fusillade of ultrasonic clicks. This barrage blurs and disrupts the bat’s echolocation: the signal is essentially jammed. The baffled hunter can no longer “see” the moth, and is tricked into thinking its target has vanished. Thwarted, the hungry predator flies away, and the prey is safe.
Our little tiger moth beats its enemy at its own game.
Wouldn’t it be nice if we could “jam the signal” of the enemy of our soul? If we could disrupt and counter the lies the world tells us about ourselves?
I love desserts that you can make on the spur of the moment, with ingredients you already have in your kitchen (like the recipe for coffee cake below). The ones where you don’t need to make a special trip to the store to find an uncommon or rarely used ingredient.
For instance, I love the flavour of pistachios, but rarely keep them on hand in my cupboard. Walnuts, on the other hand, are more likely to be found year-round in my kitchen. If a recipe calls for nuts, I know I’m bound to have some walnuts I can use.
Or what about an ingredient like rosewater? It sounds like it would create an exotic dessert, but who keeps rosewater in their pantry?
Did you know that some birds and bees can see things that are completely invisible to us? They’re able to see in infrared, just beyond the wavelengths of the visible light spectrum that human eyes can detect.
What looks to us like a regular pink flower might resemble a helicopter landing pad to a bee. Where we see only the uniform expanse of one colour, the bee may see a target-shaped design of several differently coloured concentric circles. The bee’s infrared vision allows it to home in on the most nectar-rich part of the flower.
The world looks completely different when you can see in infrared.
I sometimes think that God sees us in “infrared.” He can see things in us that are invisible to others, and even to ourselves.
The lockdowns associated with the coronavirus pandemic have produced some unexpected results in the natural world.
With fewer vehicles and industrial machines operating, noise pollution has been reduced so dramatically that seismologists can hear sounds from inside the planet that they couldn’t detect previously.
In cities, reduced traffic noise is allowing people to hear birdsong, the chatter of squirrels, and the chirping of crickets like never before. People have been surprised to discover that they can now hear the flapping of birds’ wings as they pass overhead.
A quieter environment is probably also allowing animals to hear each other better. City birds usually have to sing more loudly than their country cousins to make themselves heard above the urban cacophony: perhaps their mates and rivals can hear them more easily now. With a reduction in ship traffic, marine mammals might also be finding that they can contact each other with greater ease now that there is less “acoustic smog” in the oceans.
If we can hear the creation better during the lockdowns, and creation can hear itself better, can we hear our Creator better?
For those of us who are regular church-goers, the cessation of regular worship gatherings due to the coronavirus has been wrenching.
With churches shuttered temporarily, the children’s and youth activities, Bible studies, and men’s and women’s groups that they housed have had to close down along with them. Sure, some churches have switched to live-streamed Sunday services and online gatherings, but we’re not able to meet in person to worship or fellowship like we used to.
We probably feel a little hard done by, don’t we?
But there’s one group of Christians for whom these sorts of restrictions have long been an all too familiar reality:
When winter still has us in its icy grip, it’s hard to imagine that it will ever let us go. There seems to be no end to the frigid temperatures and snowstorms, and it can really get a person down.
What can we do to give us hope during a bleak, cold winter?
A favourite thing that gardeners do is to curl up indoors with some seed catalogues. They read about the promise of future luxuriant flower gardens and abundant crops of vegetables. It lifts their spirits and helps them hold on until spring comes.
If you’re familiar with the stock market, you probably know what a “stop-loss” is. It’s an order whereby your shares are automatically sold if their value drops to a predetermined level. This prevents your losses from becoming even greater if share prices drop further.
It’s a handy tool to set in place when trading on the stock market. It locks in your profits or limits your losses in a down market, and helps preclude financial catastrophe.
But don’t you wish we had a “stop-loss” for real-life problems?
Do you have a collection of old family recipes or cookbooks? Many of us are fortunate enough to have such treasures, lovingly passed down to us. They’re worth hanging on to.
The recipes might be contained in a cookbook, or written down on index cards and filed in a plastic or wooden box. They may be handwritten and neatly organized in a binder, or simply clipped from the newspaper and stuffed haphazardly into the pages of an old cookbook.
But no matter how the recipes are filed, there’s an easy way to tell which ones are the best:
What’s your astrological sign? Are you a Libra or a Leo? Do you read your horoscope daily and make life decisions based on that advice?
Or maybe you follow Chinese astrology, which is based on the year in which you were born rather than the month. The Chinese are about to celebrate the Lunar New Year, heralding the beginning of the Year of the Rat.
Both of these systems teach that the time cycle in which you were born determines your personality, and to some extent the course of your life. But this might leave you with a sense of being powerless, at the mercy of impersonal forces beyond your control.
Isn’t there something better to help you navigate your way through life?