Wildlife & Animal Behavior – B2 English Listening Exercise

9 apple orchard 10 language 11 figure of eight 12 duration

13 sun 14 floral scent 15 fresh water

16 strong wind 17 radar transmitters 18 food security

David: Hi everyone, my name is David, and I’m going to talk to you today about my wildlife project. I’ve always been fascinated by nature. Most of my classmates chose to study mammals or birds for their assignment, but I decided to focus on something a bit smaller. My interest was actually sparked last summer while sitting in my grandfather’s apple orchard, watching bees buzzing around the blossoms.

I noticed they weren’t just flying randomly. It turns out, bees perform a distinctive waggle dance to communicate to their hive mates the precise coordinates where nectar and pollen can be found. I initially thought they were just cleaning their wings or perhaps generating heat, but scientists have proven this movement is actually a complex language used for survival.

When a foraging bee returns to the hive, she performs this dance on the honeycomb. You might expect the dance to be a simple circle, which they do use for nearby food. However, for food further away, they perform a pattern that looks exactly like a figure of eight, crossing back and forth in the middle.

The straight run in the middle of the dance is the most crucial part. I assumed the speed of the bee indicated how far away the food was. Actually, it’s the duration of that straight run that tells the other bees the distance to the flowers. Every second of the waggle equals about a kilometre in flight.

But how do they know which way to go? The inside of the hive is pitch black, so they can’t see the sky. Instead, they use gravity as a reference point on the vertical combs. The angle of the dance away from the vertical directly corresponds to the angle away from the sun outside. It’s an absolutely incredible piece of navigation.

The dance gives precise coordinates, but the dancing bee also shares something else. While dancing, she distributes tiny samples of the nectar. I read that visual cues help bees land, but researchers say it’s the floral scent clinging to her body that truly guides the other bees once they reach the general area.

It’s not just about finding food, though. During a heatwave in the summer, a colony might desperately need to cool down. While they occasionally use the dance to find tree resin for repairs, they most frequently use it to communicate the location of fresh water, which they bring back to spread over the honeycomb to act as air conditioning.

Of course, things don’t always go smoothly for these insects. A cloudy sky doesn’t really bother them, as they can detect ultraviolet light through the clouds. Instead, it’s strong wind that poses the biggest challenge, pushing them off course and making the coordinates they received inaccurate.

Studying this behaviour has become highly advanced. In the past, scientists just painted tiny coloured dots on the bees’ backs to see where they went. Today, they prefer to use tiny radar transmitters attached to the bees to track their exact flight paths across the landscape.

Understanding this communication is vital for us. Some people think bee research is only useful for honey production. But in reality, protecting these pollinators is essential for global food security, because a third of everything we eat depends on their hard work.

9 popular pets 10 vocal chords 11 semantic meaning 12 wild flocks

13 predators 14 emotional state 15 fruit

16 context 17 vacuum cleaner 18 body language

Dr. Mark Aris: Hello everyone. My name is Dr. Mark Aris, and I’m a wildlife biologist specialising in animal behaviour. Today, I’m going to talk to you about a truly fascinating subject: parrots and their incredible ability to mimic human sounds. Because of their vibrant plumage and this unique ability to copy human speech, they have become incredibly popular pets all over the world, kept in millions of homes.

When we hear a parrot say “Hello” or “How are you?”, it feels like a genuine, thoughtful greeting. But how do they actually produce these sounds? Well, it might surprise you to learn that they don’t have the same anatomical equipment as mammals do. Instead of using vocal chords like humans to generate sound, they use a special organ located at the base of their windpipe called a syrinx. By manipulating the muscles around the syrinx, they can control the airflow and recreate incredibly complex sounds.

However, there is a fundamental catch. While they are absolute master mimics, parrots completely lack comprehension of the semantic meaning behind those sounds. They aren’t actually speaking a language or forming ideas in the way you and I do.

So, why do they go to the trouble of mimicking at all? Out in nature, it’s all about survival and social connection. A young bird will naturally learn to imitate the specific calls of its wild flocks. This shared dialect helps them identify each other, maintain group cohesion in the dense jungle, and warn each other of danger.

Interestingly, they don’t just limit themselves to copying their own species. You might assume they’d only mimic other birds they hear in the canopy, but actually, they frequently imitate the calls of predators as a clever defence mechanism to scare off potential threats. It’s a fantastic evolutionary trick.

When a parrot is kept in a living room, the human family effectively becomes its new flock. It mimics our daily noises to bond with us. Many owners assume a parrot asking for a cracker means it’s suffering from hunger, but generally, the mimicking simply reflects the bird’s emotional state. If the bird is happy, relaxed, and excited, it will repeat sounds that have historically brought it positive attention from its owners.

There have been some extensive studies on parrot intelligence over the decades. In one well-known laboratory experiment, scientists tried to teach an African Grey parrot to identify different foods. Initially, researchers expected the bird would prefer seeds, which are a dietary staple for them. However, the parrot was successfully trained to verbally request a piece of fruit by recognizing its specific shape and colour. It was quite a breakthrough.

Even though they don’t understand the dictionary definition of words, parrots are highly observant creatures. They are brilliant at associating a particular sound or phrase with a specific context. For example, if you always say “goodbye” when you pick up your house keys, the parrot learns to say “goodbye” whenever it hears the keys jingling. It doesn’t know what “goodbye” means, it just knows it’s the noise you make before walking out the door.

They are also notorious for copying household appliances, often with frustrating accuracy. Once, while visiting a bird rescue centre, I kept hearing a ringing telephone and rushed to answer it, only to find it was a mischievous cockatoo. Yet the most convincing trick I ever witnessed was when a macaw perfectly replicated the loud whirring of a vacuum cleaner. I was completely fooled and thought someone was doing the housework!

Ultimately, while their vocal tricks are highly entertaining, we shouldn’t treat them like humans in feathers. If you want to know what your pet bird is truly trying to communicate, you are far better off observing its body language rather than listening to the words it repeats. Thank you very much for listening, and I’d be happy to take any questions.