1. Pan of cartoon by Ziraldo showing evolution from monkey to terrorist on exhibition at the Scenarium Gallery in Rio de Janeiro
2. Art piece "Je Suis Charlie" using elements from Andy Warhol's iconic Campbell Tomato Soup artwork
3. Wide of art piece "Je Suis Charlie"
4. Wide of exhibition curator looking at art piece with other cartoonists
5. Close of art piece
6. Wide of art piece
7. SOUNDBITE (Portuguese) Ricky Goodwin, curator of exhibition:
"Cartoonists and humorists felt very mobilised and hurt, even those who did not have knowledge or direct connection with Charlie (Hebdo), they have a direct connection with the fact that they targeted their work, their craft. So there was a movement by the artists of expression through their art and one of the ways we found to do this concretely was through this exhibition."
8. Wide of exhibition
9. Artist Cesar Lobo showing his work
10. Pan of names of people who died in Paris attacks by religious fundamentalists with names creating the word "Charlie," a reference to Charlie Hebdo
11. SOUNDBITE (Portuguese) Cesar Lobo, cartoonist and artist:
"I think that in reality what changed is the fact that humour has started being important again. Humour is the most radical form of interpreting reality and humour was lacking themes and importance."
12. Wide of exhibition
13. Cartoon by Chiar showing terrorist cutting off a clown balloon with a knife
14. Claudio Duarte cartoon depicting an IS (Islamic State group) terrorist holding an orange pencil
15. Cartoons on wall
17. A quote by journalist Sergio Augusto which reads (Portuguese) "Terror with humour will be paid for."
Brazil's top cartoonists and artists have launched an exhibition exploring freedom of expression and militancy in the aftermath of the attack at the French satire magazine Charlie Hebdo.
The exhibition titled "Traco Livre" meaning "Free trace" in English, opened in Rio de Janeiro at the Scenarium Gallery in the bohemian Lapa district.
The works examined terrorism, freedom of expression and many directly referenced the Charlie Hebdo attack.
Artist Cesar Lobo included in his artwork the words "Je Suis Charlie," which were seen on posters in worldwide demonstrations which took place in solidarity with the cartoonists killed in the January attack.
But instead of holding up the poster, Lobo placed it on the floor facing Mecca and had it resemble an Islamic prayer rug.
The letters spelling "Charlie" were filled with the names of over 500 victims of militant attacks in various countries.
In another of his works, Lobo chose Andy Warhol's iconic "Campbell Soup" piece and inserted "Je Suis Charlie" onto the cans to reflect how support for the victims of the attack had become so popular.
Lobo said the Charlie Hebdo attack made humour's place in society relevant again.
"I think that in reality what changed is the fact that humour has started being important again. Humour is the most radical form of interpreting reality and humour was lacking themes and importance," Lobo said.