Flush-Free Fertilizer
Making the most of a meal
Seeds of the Future
Salamanders and Newts
Tree Frogs
Fishing for Giant Squid
New Elephant-Shrew
New Monkey Business
The Disappearing Newspaper
Wake Up, Sleepy Gene
A Recipe for Happiness
Chemistry and Materials
Supersonic Splash
The chemistry of sleeplessness
Salt secrets
New eyes to scan the skies
Middle school science adventures
A New Look at Saturn's rings
Dinosaurs and Fossils
Dino-Dining Dinosaurs
A Really Big (but Extinct) Rodent
Dino Flesh from Fossil Bone
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Petrified Lightning
Warmest Year on Record
Getting the dirt on carbon
Lessons from a Lonely Tortoise
Cactus Goo for Clean Water
Swimming with Sharks and Stingrays
Finding the Past
Prehistoric Trips to the Dentist
Childhood's Long History
Sahara Cemetery
White Tip Sharks
Nurse Sharks
Food and Nutrition
Strong Bones for Life
The Color of Health
Chocolate Rules
GSAT English Rules
Problems with Prepositions
Whoever vs. Whomever
GSAT Exam Preparation Jamaica
Preparing for the GSAT Exam
GSAT stars reap scholarship glory
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
GSAT Exams Jamaica Scholarships
GSAT Scholarship
GSAT Practice Papers | GSAT Mathematics | Maths
Results of GSAT are in schools this week
GSAT Mathematics
Math of the World
10 Common Mistakes When Preparing for the GSAT Math Test
It's a Math World for Animals
Human Body
A Sour Taste in Your Mouth
Hear, Hear
Cell Phones and Possible Health Hazards
Praying Mantis
Expert report highlights the importance to parents of reading to children!
How children learn
Raise a Lifelong Reader by Reading Aloud
One ring around them all
Road Bumps
Powering Ball Lightning
Springing forward
Bright Blooms That Glow
Sweet, Sticky Science
Space and Astronomy
Sounds of Titan
Planet Hunters Nab Three More
Dark Galaxy
Technology and Engineering
Shape Shifting
Young Scientists Take Flight
Beyond Bar Codes
The Parts of Speech
Problems with Prepositions
Adjectives and Adverbs
Charged cars that would charge
Are Propellers Fin-ished?
Tinkering With the Basic Bike
Catching Some Rays
The solar system's biggest junkyard
A Dire Shortage of Water
Add your Article


Birds are excellent adapters, evolving both physically and behaviorally to exist in a variety of different environments. While you may think of birds as being creatures of the air, waterfowl are an example of birds adapting and thriving in environments in which we may not expect to see them. Unlike perching birds and birds of prey, waterfowl have webbed feet adapted to paddling in the water, and secrete a special oil that, when groomed into their feathers, helps keep them dry. Their diet, too, is suited to a semi-acquatic life, and while some feed on the plants that grow around water, others are skillful at diving and fishing. Anatidae is the biological family that includes the ducks and most duck-like waterfowl, such as geese and swans. These are birds that are modified for swimming, floating on the water surface, and in some cases diving in at least shallow water. They have webbed feet and bills which are flattened to a greater or lesser extent. Their feathers are excellent at shedding water due to special oils. Anatidae are remarkable for being one of the few families of birds that possess a penis; they are adapted for copulation on the water only and care must be taken when breeding ducks or geese that a pool is provided for this purpose as attempts to copulate on dry land will often lead to injury of the drake's penis. Duck, eider and goose feathers and down have long been popular for bedspreads, pillows, sleeping bags and coats. The members of this family also have long been used for food. While the status of the Anatidae as a family is straightforward, and there is little debate about which species properly belong to it, the relationships of the different tribes and subfamilies within it are poorly understood. The listing in the box at right should be regarded simply one of several possible ways of organising the many species within the Anatidae.


Designed and Powered by™