Highlights
Life with Koko
Andy Boyles
Science & Nature
Koko, sign language, magazines, Highlights, Francine Penny Patterson, intelligence, primates, apes, cat, gorilla, gorillas
HL
779
C1
English
9781643036786
Scientists were able to teach Koko the gorilla how to communicate with humans using sign language. Not only did she learn over 1,000 signs, she was able to invent her own.
Word lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Coverage |
|---|---|---|
| Eiken Grade 1 | 3,105 | 0.03% |
| Eiken Grade 2 | 866 | 0.58% |
| Eiken Grade 3 | 900 | 8% |
| Eiken Grade 4 | 600 | 12.33% |
| Eiken Grade 5 | 600 | 15% |
| Eiken Grade Pre1 | 2,868 | 0.07% |
| Eiken Grade Pre2 | 1,327 | 1.36% |
| Eiken Grade Pre2+ | 1,562 | 1.86% |
| NDL | 875 | 20.8% |
| NGSL 1 to 1,000 | 1,000 | 18.2% |
| NGSL 1,001 to 2,000 | 1,000 | 3.6% |
| NGSL 2,001 to 3,000 | 801 | 1.5% |
| NGSL Supplemental | 52 | 5.77% |
Grammar lists coverage
The word and grammar lists are compiled from commercially available resources and English study websites. They are not intended to be authority. Use at your own discretion.| List | Total | Unique | Coverage | Unique |
|---|---|---|---|---|
| Eiken Grade Pre1 | 94 | 94 | 0% | 0% |
| Eiken Grade 2 | 123 | 122 | 0% | 0% |
| Eiken Grade Pre2 | 111 | 108 | 0% | 0% |
| Eiken Grade 3 | 48 | 47 | 0% | 0% |
| Eiken Grade 4 | 52 | 49 | 0% | 0% |
| Eiken Grade 5 | 176 | 139 | 0% | 0% |
| A1 | 352 | 316 | 0% | 0% |
| A2 | 949 | 893 | 0% | 0% |
| B1 | 1,126 | 1,106 | 0% | 0% |
| B2 | 775 | 760 | 0% | 0% |
| C1 | 402 | 395 | 0% | 0% |
| C2 | 312 | 308 | 0% | 0% |