Experimental investigation of orangutans' lithic percussive and sharp stone tool behaviours | PLOS ONE
![File:Dordrecht trinitatiskapel pastorie kapconstructie schenkelspant philibertspant.jpg - Wikimedia Commons File:Dordrecht trinitatiskapel pastorie kapconstructie schenkelspant philibertspant.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/e/eb/Dordrecht_trinitatiskapel_pastorie_kapconstructie_schenkelspant_philibertspant.jpg)
File:Dordrecht trinitatiskapel pastorie kapconstructie schenkelspant philibertspant.jpg - Wikimedia Commons
![Frontiers | Ecology of Fear: Spines, Armor and Noxious Chemicals Deter Predators in Cancer and in Nature Frontiers | Ecology of Fear: Spines, Armor and Noxious Chemicals Deter Predators in Cancer and in Nature](https://www.frontiersin.org/files/Articles/682504/fevo-09-682504-HTML/image_m/fevo-09-682504-g001.jpg)
Frontiers | Ecology of Fear: Spines, Armor and Noxious Chemicals Deter Predators in Cancer and in Nature
![First Occurrence of Sivatherium Falconer and Cautley, 1836 (Mammalia, Ruminantia, Giraffidae) in the Iberian Peninsula First Occurrence of Sivatherium Falconer and Cautley, 1836 (Mammalia, Ruminantia, Giraffidae) in the Iberian Peninsula](https://bioone.org/ContentImages/Journals/vrpa/41/3/02724634.2021.1985507/graphic/img-z10-5_01.jpg)
First Occurrence of Sivatherium Falconer and Cautley, 1836 (Mammalia, Ruminantia, Giraffidae) in the Iberian Peninsula
![Mathematics | Free Full-Text | Optimization of Turbulence Model Parameters Using the Global Search Method Combined with Machine Learning Mathematics | Free Full-Text | Optimization of Turbulence Model Parameters Using the Global Search Method Combined with Machine Learning](https://www.mdpi.com/mathematics/mathematics-10-02708/article_deploy/html/images/mathematics-10-02708-g001.png)
Mathematics | Free Full-Text | Optimization of Turbulence Model Parameters Using the Global Search Method Combined with Machine Learning
![PDF) Wiki-supported collaborative learning in primary education: How a dialogic space is created for thinking together PDF) Wiki-supported collaborative learning in primary education: How a dialogic space is created for thinking together](https://i1.rgstatic.net/publication/220309222_Wiki-supported_collaborative_learning_in_primary_education_How_a_dialogic_space_is_created_for_thinking_together/links/00b7d52cd13e8d9383000000/largepreview.png)