True or False: Nature

Explication : TRUE! Slugs have 4 tentacles: 2 for seeing and 2 for smelling. These 4 "noses" allow them to detect food and dangers in their environment.

Explication : FALSE! The Siberian tiger is the largest feline, reaching up to 300 kg and 3.3 m long. Male lions rarely exceed 250 kg.

Explication : TRUE! Dolphins practice unihemispheric sleep: one side of the brain sleeps while the other stays awake. This allows them to continue breathing and watch for predators.

Explication : FAUX ! Les ours polaires n'hibernent pas vraiment (seules les femelles gestantes le font). Les ours des régions chaudes comme l'ours malais ne dorment pas du tout en hiver.

Explication : TRUE! Studies have shown that crows recognize human faces and remember for years those who threatened them. They can even pass this information to their offspring!

Explication : FALSE! Only honeybees die after stinging a mammal (their stinger gets stuck). Other bee species and wasps can sting multiple times without dying.

Explication : VRAI ! En anglais, on dit "a flamboyance of flamingos". Ce terme poétique fait référence à leur plumage éclatant et à leur comportement grégaire spectaculaire.

Explication : FALSE! Snakes have no external ears but they "hear" vibrations through their jawbone and body. They also perceive certain low-frequency sounds.

Explication : TRUE! Studies have shown that cows form strong friendship bonds. Their cortisol level (stress hormone) increases significantly when separated from their friends.

Explication : FALSE! Frogs absorb water directly through their skin! They have a special area on their belly and thighs called "hydration patch" that absorbs water through osmosis.

Explication : TRUE! The "Wood Wide Web" is a network of mycorrhizae (fungi) connecting tree roots. They can thus exchange nutrients, water, and even warning signals against parasites.

Explication : FALSE! Cactus spines are actually modified leaves! They evolved to reduce water loss and protect the plant. Some cacti even have temporary true leaves.

Explication : TRUE! Squirrels hide thousands of nuts but forget about 25% of them. These forgotten nuts germinate and become trees. A squirrel can thus plant several thousand trees in its lifetime!

Explication : FALSE! Their slowness is a survival strategy! Their ultra-slow metabolism allows them to survive with very little food (low-nutrition leaves) and avoid predators that detect movement.

Explication : TRUE! Sea otters sleep on their backs at the water's surface. To avoid being separated by currents, they often hold hands. So cute!

Explication : FALSE! Dogs see in color but differently from us. They have 2 types of cones (instead of 3) and mainly perceive blue and yellow. They see the world like a red-green colorblind person.