Found in South America, the Rhea bird is one of the largest flightless birds in the world. Research shows that Rhea dads could be the most devoted fathers in the world of the feathered.
Weight: 55-80 pounds
Diet: Broad-leafed plants, roots, seeds, fruits, small insects, baby reptiles and small rodents
Nest size: 10-60 eggs
Flight: Flightless; can run at speeds up to 40 miles/hour
Found in: Argentina, Bolivia, Brazil, Chile, Paraguay, Peru, and Uruguay
Related to: Ostrich and emu
5 fun facts about Rhea dads
Rhea dads take on the sole responsibility of building the nest. This includes finding the right spot, procuring the right materials and building a good quality nest (and they do this for every female they mate with – which can be anywhere between 2 & 12).
Rhea fathers are a lot like penguin dads. They incubate the eggs and hatch it themselves (they usually attract the females to the nest – a shallow hole in the ground lined with leaves and moss – and have them deposit their eggs there).
These birds are great at using decoys. They use rotten eggs, mouldy fruit and other animal bait as decoys to distract predators from the nest. These decoys are lined around the nest and are replenished whenever they are consumed. This helps keep the clutch safe from harm.
Once the eggs hatch (after 6 weeks of incubation), the Rhea father spends the next 6 months caring for the chicks. The chicks burrow into their father’s feathers and revel in his feathery warmth. So possessive is he of his clutch, he even keeps the mothers at bay by attacking them with a ferocious charge and vicious bite.
Often, when they aren’t fulfilled by their existing brood, Rhea dads charge adolescent males as stand-in fathers, while they mate with more females and create a new nest. They then rotate between the nests, caring for the young and making sure they are properly protected.
Want to know more about this not-so-deadbeat dad? Take a look at the video below:
When it comes to fatherhood, its safe to say that the Rhea male is extremely devoted. He is one of those exceptions, who joins ranks of those animal dads who outrank mom in the art of child rearing.
Biomimetics, also known as biomimicry, is a branch of science that uses nature as inspiration to find solutions for human problems. One of the biggest uses of Biomimetics is using animal and plant defensive strategies as the foundation for technology. Here are 5 amazing inventions that are inspired by the wild.
Sharkskin and catheters
Catheters are so important for a variety of medical treatments. But for long, doctors had to contend with dirty-catheter-induced infections in patients. To combat this problem, scientists looked towards sharks.
Sharks have tiny, V-shaped sharp bumps on their skins called dermal denticles which prevent algae, barnacles and slime from collecting on the shark. This keeps them clean, healthy and free from dermatological afflictions.
Using the sharkskin concept, a company called Sharklet Technologies developed a specialized plastic wrap with sharp bumps along the surface, which could be coated on catheters. Once coated, the wrap prevented the accumulation of germs and pus on the catheter, reducing the threat of infections in patients.
These denticles also reduce drag in shark and help them preserve energy when swimming. That’s why swimming costume and bodysuit manufacturers are using the same concept to create efficient sportswear for athletes.
Tardigrades and live vaccines
Suspended animation is a concept that’s enthralled us for decades. Movies like Space Odyssey and Avatar have further rejuvenated our interest in the concept. While humans are still experimenting with suspended animations, one animal has been living the concept for centuries.
Tardigrades are tiny, microscopic eight-legged animals that resemble arthropods. They’re called water bears or moss piglets because they spend their entire lives in water. If however, the water dehydrates, tardigrades find it difficult to survive. But instead of dying out, the tardigrades go into a state of suspended animation and remain in this state until their environment becomes re-hydrated. They do so by coating their DNA with a type of sugar-protein.
Scientists have used this concept to develop a method to preserve vaccines that expire in very short periods of time. They wrap the vaccines in sugar proteins similar to the ones used by tardigrades, putting them in a frozen state (without actually refrigerating them), which keeps them in perfect condition for up to 6 months. This ensures that the vaccines remain ‘live’ and ‘fresh’ much longer.
You can see tardigrades in the flesh here. If you want to find your own tardigrade, be sure to check out this video.
Butterflies and e-reader colour display
E-readers have renewed the habit of reading in many parts of the world. One of the best features that set e-readers apart from other technology is the colour display – light that enables users to read in extreme glare and in the dark.
It would come as a surprise to many that e-reader colour display has been inspired by butterflies. The iridescence of butterfly wings has inspired the development of the Mirasol, a full-colour e-reader that can churn out high-quality LCD-worthy colour pictures and text.
Butterfly wings shine in the sunlight by reflecting light off themselves, instead of absorbing and transmitting light. The display of the Marisol is based on this very feature. Sunlight is reflected off the screen ensuring that glare is reduced and the colours appear brighter and sharper; as opposed to in LCD screens where light is transmitted from within to produce colour.
Beetles and water harvesting
Found in the dry Namib desert in Africa, the Namib beetle is a master at collecting water. Living in an environment that faces a dire shortage of hydration, the beetle has evolved to keep itself hydrated even in the face of the most scorching summer.
The beetle’s shell is made of a flexible, waxy Teflon-like material which contains tiny grooves capable of trapping fog and condensing it into the water. The beetle indulges in what is known as ‘fog-basking’; where it turns it’s back towards the wind/fog and collects the fog in the grooves on its back. The fog condenses into water and is pushed-off the slippery waxy-back and directed towards the beetle’s mouth.
Following the beetle’s ingenious water collection methods, researchers have developed water collection nets and drinking bottles (Dew Bank Bottle) whose surface resembles the beetle’s grooved back. These technologies are used in the arid Chilean and Israeli desserts to collect water for indigenous residents.
Boxfish and automobiles
When Mercedes-Benz was designing its new state-of-the-art energy-efficient Bionic car, it derived its design inspiration from a small, uniquely shaped fish. The boxfish, found in the warm waters of the Pacific Ocean and the Indian Ocean, is a fish that has a honeycomb-like triangular/squarish-shaped body. But its shape isn’t the only thing unique to the boxfish. Its body is covered with bony plates called ‘carapace’ which reduce the drag underwater, while the fish swims.
This unique body structure with its almost snout-like mouth makes the boxfish extremely aerodynamic. Underwater currents move over the fish’s body, reducing turbulence and allowing it to move fast.
Mercedes-Benz applied the boxfish’s anatomical structure to their Bionic car which was quirky to look at and extremely aerodynamic. The car’s structure also made it extremely energy efficient. Today, the Bionic is one of the most talked-about cars.