The Mystery of the unknown world

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Across
  1. 2. US department of agriculture researcher
  2. 5. the one person whose aim was to popularise birdsong and raise standards in the use of sounds in bird identification
  3. 6. looks like reddish brown spots,attacks and feeds on honeybees
  4. 10. uniquely covered in tough, overlapping scales and mostly eats ants and termites
  5. 11. Known as the lesser panda,a small mammal native to Himalayas and southwestern China
Down
  1. 1. the first bird on earth
  2. 3. smallest bear in the world
  3. 4. panda of the oceans
  4. 7. A large antelope with a mainly greyish and white coat, native to the deserts of North Africa
  5. 8. known as Asian Unicorn
  6. 9. Varroa mites feed over which organ in the body of honey bees